CN104347921A - Power divider and radio unit - Google Patents
Power divider and radio unit Download PDFInfo
- Publication number
- CN104347921A CN104347921A CN201310322843.9A CN201310322843A CN104347921A CN 104347921 A CN104347921 A CN 104347921A CN 201310322843 A CN201310322843 A CN 201310322843A CN 104347921 A CN104347921 A CN 104347921A
- Authority
- CN
- China
- Prior art keywords
- microstrip line
- rectangular microstrip
- long limit
- limit
- power divider
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Abstract
The invention provides a power divider and a radio unit. The power divider is used for transmitting signals of an input end to multiple output ends and comprises a rectangular microstrip line coupled to the input end, and multiple coupling units, wherein the multiple coupling units are conducted with the rectangular microstrip line in an electromagnetic coupling mode and respectively have a first spacing with the rectangular microstrip line; each coupling unit comprises at least one pair of L-shaped resonators arranged between the rectangular microstrip line and the corresponding output end; each pair of L-shaped resonators comprises a first long edge, a second long edge, a first short edge and a second short edge; the first long edges and the second long edges are both approximately parallel to the rectangular microstrip line; each first short edge is approximately vertical to the corresponding first long edge and extends from one end of the corresponding first long edge to the central line of the corresponding double L-shaped resonators; each second short edge is approximately vertical to the corresponding second long edge, extends from one end of the corresponding second long edge to the corresponding central line, is opposite to one end of the corresponding first short edge, and has a second spacing with the end of the corresponding first short edge; the first long edges are adjacent to the rectangular microstrip line, and the second long edges are coupled to the output ends. The power divider is reduced in area and losses and has a filtration function.
Description
Technical field
The present invention relates to a kind of power divider and radio-frequency unit, espespecially a kind of promote array antenna usefulness and effectively reduce power divider and the radio-frequency unit of required area simultaneously.
Background technology
Array antenna is the antenna system that multiple identical antenna arranges formation according to certain rules, and it is widely used in radar system, as microwave/millimeter wave radar system.In an array antenna, in order to reach specific radiation pattern, or to meet between each antenna certain weights and distribute, known technology is the input concatenated filter at array antenna, uses as power divider, to realize amplitude needed for each radiation body and phase place.Generally speaking, array antenna and power divider independently design and to be directly connected in series afterwards, often cannot integrate efficiently.Simultaneously, also need the problem considering impedance mismatch, though match circuit can be designed in addition improve usefulness, area must be paid and increase the cost improved with cost, with and cause antenna gain also therefore to reduce, and then cause detecting distance by radar and shorten and can scanning angle the inferior position such as to narrow.
Therefore, effectively reduce required area while how promoting the usefulness of array antenna, become the target that industry is made great efforts.
Thus, need to provide a kind of power divider and radio-frequency unit to solve the problems referred to above.
Summary of the invention
Therefore, namely main purpose of the present invention is to provide a kind of power divider and radio-frequency unit, to effectively reduce required area while the usefulness promoting array antenna.
The present invention discloses a kind of power divider, and this power divider is used for the signal of an input to be sent to multiple output, and this power divider comprises: a rectangular microstrip line, and this rectangular microstrip line is coupled to this input; And multiple coupling unit, the plurality of coupling unit is with this rectangular microstrip line of electromagnetic coupled mode conducting and the plurality of output, the plurality of coupling unit respectively with this rectangular microstrip linear distance one first spacing, each coupling unit comprises at least a pair of L shape resonator, this at least a pair of L shape resonator be arranged between this rectangular microstrip line and an output, and every a pair of L shape resonator comprises: one first long limit, this first long limit is roughly parallel to this rectangular microstrip line; One first minor face, this first minor face is approximately perpendicular to this first long limit, and by this first long limit one end to this pair of L shape resonator one center line extend; One second long limit, this second long limit is roughly parallel to this rectangular microstrip line; And one second minor face, this second minor face is approximately perpendicular to this second long limit, and to be extended and relative with one end of this first minor face to this center line by the one end on this second long limit, and with this end one second spacing apart of this first minor face; Wherein, this one first long limit at least in a pair of L shape resonator is adjacent to this rectangular microstrip line, and one second long limit is coupled to this output; Wherein, this first spacing and this second spacing are relevant to the power ratio of this input to the plurality of output.
The present invention also discloses a kind of radio-frequency unit, this radio-frequency unit comprises: a power divider, this power divider is used for the signal of an input to be sent to multiple output, and this power divider comprises: a rectangular microstrip line, and this rectangular microstrip line is coupled to this input; And multiple coupling unit, the plurality of coupling unit is with this rectangular microstrip line of electromagnetic coupled mode conducting and the plurality of output, the plurality of coupling unit respectively with this rectangular microstrip linear distance one first spacing, each coupling unit comprises at least a pair of L shape resonator, this at least a pair of L shape resonator be arranged between this rectangular microstrip line and an output, and every a pair of L shape resonator comprises: one first long limit, this first long limit is roughly parallel to this rectangular microstrip line; One first minor face, this first minor face is approximately perpendicular to this first long limit, and by this first long limit one end to this pair of L shape resonator one center line extend; One second long limit, this second long limit is roughly parallel to this rectangular microstrip line; And one second minor face, this second minor face is approximately perpendicular to this second long limit, and to be extended and relative with one end of this first minor face to this center line by the one end on this second long limit, and with this end one second spacing apart of this first minor face; Wherein, this one first long limit at least in a pair of L shape resonator is adjacent to this rectangular microstrip line, and one second long limit is coupled to this output; And multiple antenna, the plurality of antenna is coupled to the plurality of output, each antenna comprises: multiple radiation component, and each radiation component roughly in a quadrangle, has one first limit, a Second Edge, one the 3rd limit and one the 4th limit, this first limit and the 3rd limit almost parallel, this Second Edge and the 4th limit almost parallel, and this first limit is substantially vertical with this Second Edge, wherein, each radiation component forms one first breach at this Second Edge, and becomes one second breach at this quadrangle; And multiple extending column, each extending column extends to this first breach of this Second Edge of another radiation component by this second breach on the 4th limit of the radiation component in the plurality of radiation component, makes the plurality of radiation component be arranged in a sequence; Wherein, the plurality of radiation component is arranged in this first breach of this Second Edge of the most front radiation component of this sequence and an output one the 3rd spacing apart of the plurality of output; Wherein, this first spacing, this second spacing, the 3rd spacing are relevant to the power ratio of this input to the plurality of output.
The present invention can avoid using extra match circuit in the junction of array antenna and power divider, thus reduce area, and the loss caused when reducing signal transmission, more can possess filter function, to provide good He Ne laser degree and to isolate unnecessary signal source.
Accompanying drawing explanation
Figure 1A is the schematic diagram of a radio-frequency unit of the embodiment of the present invention.
Figure 1B is the detailed construction schematic diagram of power divider and array antenna in Figure 1A.
Fig. 2 is an equivalent circuit diagram of the radio-frequency unit of Figure 1A.
Fig. 3 is a functional-block diagram of the radio-frequency unit of Figure 1A.
Fig. 4 A is the frequency response chart of the radio-frequency unit of Figure 1A.
Fig. 4 B is the azimuth antenna radiation patterns of the radio-frequency unit of Figure 1A.
Fig. 4 C is the angle of site antenna radiation patterns of the radio-frequency unit of Figure 1A.
Fig. 4 D is that the antenna gain of the radio-frequency unit of Figure 1A is with frequency change figure.
Fig. 5 is the schematic diagram of a radio system of the embodiment of the present invention.
Fig. 6 is the schematic diagram of a radio system of the embodiment of the present invention.
Fig. 7 is the schematic diagram of a power divider of the embodiment of the present invention.
Fig. 8 A is the schematic diagram of a radio-frequency unit of the embodiment of the present invention.
Fig. 8 B is a functional-block diagram of the radio-frequency unit of Fig. 8 A.
Primary clustering symbol description:
10,80 radio-frequency units
12,70 power dividers
14 array antennas
140,142, Ant_1 ~ Ant_i antenna
16 inputs
120 rectangular microstrip lines
122,124, CU_1 ~ CU_i coupling unit
CL1, CL2 center line
126 first long limits
128 first minor faces
130 second long limits
132 second minor faces
20 equivalent electric circuits
D1 first spacing
D2 second spacing
D3 the 3rd spacing
D4 the 4th spacing
RAT radiation component
BR extending column
L1 first limit
L2 Second Edge
L3 the 3rd limit
L4 the 4th limit
CV1 first breach
CV2 second breach
EXT_1 the one L shape extension
EXT_2 the 2nd L shape extension
W1, w2 live width
L1, l2 line length
G1, g2 antenna line of rabbet joint size
Z
0input impedance
L
1, L
2, L
ainductance
C
1, C
2, C
aelectric capacity
Z
aimpedance
J
01, J
12, J
23admittance
R
1, R
2, R
11~ R
ijl shape resonator function square frame
R
a, R
1A~ R
iAantenna function square frame
M
12, M
23, M
11,12~ M
ij, ij, M
1j, 1A~ M
ij, iAcoupling coefficient
50,60 radio systems
52,54,62,64 radio-frequency units
500,600 male parts
502,602,72 inputs
700 shaped microstrip lines
702,704 coupling units
74,76 outputs
Sig input signal
RES_11 ~ RES_ij L shape resonator
Embodiment
In order to improve the shortcoming of known technology, array antenna and power divider integrate by the present invention, utilize co-plane waveguide (coplanar waveguide, CPW) coupled structure, connect power divider and antenna with coupled modes.By this, array antenna and power divider can be avoided to use extra match circuit in crucial junction, to reduce area, and the loss caused when reducing signal transmission, to reach high-gain and to increase detection angles, reduce manufacturing cost simultaneously.In addition, because aerial array of the present invention and power divider can be integrated into a function square frame (function block), variation can be reduced when system, improving stability; And power divider can possess filter function, to provide good He Ne laser degree and to isolate unnecessary signal source.Moreover the present invention also can be connected in series multiple resonator, realize the frequency response of wider band and effectively improve impedance matching.
Specifically, please refer to Figure 1A, Figure 1A is the schematic diagram of a radio-frequency unit 10 of the embodiment of the present invention.Radio-frequency unit 10 includes a power divider 12 and an array antenna 14, and the signal of an input 16 can be sent to array antenna 14 by power divider 12.Power divider 12 includes a rectangular microstrip line 120 and coupling unit 122,124, and array antenna 14 includes antenna 140,142.In this embodiment, power divider 12 and array antenna 14 are symmetrical structure relative to a centre line C L 1 of rectangular microstrip line 120, and in other words, the structure of coupling unit 122,124 is identical, and the structure of antenna 140,142 is identical; Meanwhile, the sequence that antenna 140,142 is formed for identical radiation component and extending column, therefore, for the sake of clarity, will illustrate the detailed construction of power divider 12 and array antenna 14 below for the front end of coupling unit 122 and antenna 140.It is to be noted, however, that the radio-frequency unit 10 of Figure 1A is only one embodiment of the invention, in order to exemplary illustrated concept of the present invention, but be not limited thereto.
Please further refer to the detailed construction schematic diagram that Figure 1B, Figure 1B are power divider 12 and array antenna 14, wherein only illustrate the front end of array antenna 14, overall structure can be obtained with reference to Figure 1A, Figure 1B simultaneously.As shown in Figure 1B, coupling unit 122 is a pair of L shape resonator, and it includes one first long limit 126,1 first minor face 128,1 second long limit 130 and one second minor face 132.First long limit 126 and the first minor face 128 form a L shape resonator, and the second long limit 130 and the second minor face 132 form another L shape resonator, and this pair of L shape resonator is symmetrical structure relative to both centre line C L 2.In addition, from Figure 1B, first long limit 126 and the second long limit 130 are roughly parallel to rectangular microstrip line 120, first long limit 126 is one first spacing d1 with the beeline of rectangular microstrip line 120, and the one end on the second long limit 130 is integrated with co-plane waveguide mode and antenna 140, with coupled modes transmission of signal, therefore can be considered an output.First minor face 128 and the second minor face 132 are respectively perpendicular to the first long limit 126 and the second long limit 130, and extended to centre line C L 2 by the first long limit 126 and the second long limit 130, the first minor face 128 and the second minor face 132 minimum distance is made to be one second spacing d2, and with capacitively coupled mode transferring energy.In addition, antenna 140,142 is all arranged in a sequence by 10 radiation component RAT and 9 extending column BR and forms, and carries out signal transmission by electromagnetic coupled mode between radiation component RAT and extending column BR.Specifically, as shown in Figure 1B, radiation component RAT is roughly in a quadrangle, there is one first limit L1, a Second Edge L2, one the 3rd limit L3 and the 4th limit L4, first limit L1 and the 3rd limit L3 is almost parallel, Second Edge L2 and the 4th limit L4 is almost parallel, and the first limit L1 is substantially vertical with Second Edge L2.In addition, radiation component RAT forms one first breach CV1 to couple array antenna 14 by co-plane waveguide mode at Second Edge L2, and is beneficial to serial connection radiation component RAT at the 4th limit L4 formation one second breach CV2.That is, second long limit 130 extend to the most last radiation component RAT the first breach CV1 and with radiation component RAT distance one the 3rd spacing d3 and the 4th spacing d4(level and vertical direction), and extending column BR is extended to the first breach CV1 of next radiation component RAT again by the second breach CV2 of the most last radiation component RAT, form the radiant body sequence be made up of radiation component RAT and extending column BR by that analogy.Wherein, the first limit L1 of extending column BR and radiation component RAT or the length of the 3rd limit L3 are 1/2nd of the corresponding wavelength of operating frequency.In addition, the first limit L1 of each radiation component RAT, the 3rd limit L3 also extend one the one L shape extension EXT_1 and the 2nd L shape extension EXT_2, and it can be used to parameter such as adjustment impedance matching or frequency range etc.
From the above, power divider 12 and array antenna 14 are reached by co-plane waveguide coupled structure and are of coupled connections, thus can avoid using extra match circuit in the two crucial junction, effectively can reduce area, and the loss caused when reducing signal transmission.When transmitting, signal inputs to rectangular microstrip line 120 by input 16, a lateral edges of coupling unit 122,124 is coupled a signal to (for coupling unit 122 again by side coupled modes, i.e. the first long limit 126), therefore adjust the signal energy size that the first spacing d1 can control to be fed into by rectangular microstrip line 120 coupling unit 122,124.In like manner, the distance of minor face in two L shape resonator, i.e. the second spacing d2, is also relevant to by a L shape resonator to the signal energy size of another L shape resonator.And coupling unit 122,124 in co-plane waveguide mode by signal transmission to antenna 140,142, therefore the spacing (for coupling unit 122, i.e. the 3rd spacing d3 and the 4th spacing d4) of coupling unit 122,124 and antenna 140,142 is also relevant to by the signal energy size of coupling unit 122,124 to antenna 140,142.In this case, those of ordinary skill in the art can needed for system, and suitably adjustment the first spacing d1 is to the 4th spacing d4, with the signal energy of control input end 16 to antenna 140,142.Generally speaking, coupling amount is larger, and desired spacing is less, and its bandwidth also increases thereupon.
In addition, the length of two L shape resonators in coupling unit 122,124 is (for coupling unit 122, the i.e. length summation of the first long limit 126 and the first minor face 128, or the second length summation of long limit 130 and the second minor face 132) be respectively 1/2nd of the corresponding wavelength of operating frequency, and its live width w1, w2 or line length l1, l2 also can control operating frequency.Moreover the distances between the shape of antenna line of rabbet joint size g1, g2, the first breach CV1, the second breach CV2 or size, radiation component RAT etc. are adjustable resonance frequency and input energy size also.Therefore, for specific bandwidth, as long as meet specific coupling coefficient, the live width of L shape resonator can be made with different structures from line length and change, and has the larger degree of freedom in design.
In this case, an equivalent electric circuit 20 of radio-frequency unit 10 can be derived, as shown in Figure 2.In fig. 2, Z
0represent the input impedance of radio-frequency unit 10; Inductance L in parallel
1, electric capacity C
1be a L shape resonator (for coupling unit 122, namely the first long limit 126 and the first minor face 128 form L shape resonator) equivalent electric circuit; Inductance L in parallel
2, electric capacity C
2for another L shape resonator (for coupling unit 122, namely the second long limit 130 and the second minor face 132 form L shape resonator) equivalent electric circuit; And the impedance Z of parallel connection
a, inductance L
a, electric capacity C
afor the equivalent electric circuit of antenna 140.In addition, the coupling coefficient of rectangular microstrip line 120, coupling unit 122,124 and antenna 140,142 comes equivalent with admittance reverser (JInverter), that is admittance J
01represent the coupling coefficient between rectangular microstrip line 120 and coupling unit 122,124, admittance J
12represent the coupling coefficient between two L shape resonators in coupling unit 122,124, and admittance J
23represent the coupling coefficient of coupling unit 122,124 and antenna 140,142.Equivalent electric circuit 20 can filter theory be analyzed, and via given required resonance frequency, bandwidth equal-specification information, can design the frequency response of expection.
In addition, because the length of the radiation component length (i.e. the first limit L1 or the 3rd limit L3) of antenna 140,142, the length of extending column BR and L shape resonator is (for coupling unit 122, the i.e. length summation of the first long limit 126 and the first minor face 128, or the second length summation of long limit 130 and the second minor face 132) be all 1/2nd wavelength of signal to be transmitted, therefore visual antenna 140,142 is a part for power divider 12, i.e. the extension of L shape resonator.In this case, radio-frequency unit 10 further can be reduced to a functional-block diagram, as shown in Figure 3.Wherein, R
1, R
2represent the function square frame of two L shape resonators in coupling unit 122,124, and R
arepresent the function square frame of antenna 140,142; Coupling coefficient between two L shape resonators is with M
12represent, and the coupling coefficient between coupling unit 122,124 and antenna 140,142 is with M
23represent.By this, design cycle can effectively simplify.
For example, if required coupling coefficient M
12with M
23between 0.001 to 1, except the length of the radiation component length of frequency setting antenna 140,142 according to signal waiting for transmission, the length of extending column BR and L shape resonator, can adjust the first spacing d1 is further respectively between 10mm to 0.05mm to the 4th spacing d4, then can obtain the performance plot of Fig. 4 A to Fig. 4 D.Wherein, Fig. 4 A is the frequency response chart of radio-frequency unit 10, and Fig. 4 B is the azimuth antenna radiation patterns of radio-frequency unit 10, and Fig. 4 C is the angle of site antenna radiation patterns of radio-frequency unit 10, and Fig. 4 D is that the antenna gain of radio-frequency unit 10 is with frequency change figure.From Fig. 4 A, because array antenna 14 and power divider 12 are integrated, bandwidth can effectively be increased and not because impedance operator when indivedual independent design is connected in series again can offset to some extent.From Fig. 4 C, the wave beam of array antenna 14 can by active set.In addition, from Fig. 4 D, radio-frequency unit 10 has filter effect, and has multiple transmission zero, therefore outside working band, has less radiation, can reduce interference, and increase He Ne laser degree.
From the above, the present invention is by coupling unit 122, 124 with electromagnetic coupled mode conducting rectangular microstrip line 120 and antenna 140, 142, therefore the first spacing d1 is to the 4th spacing d4, coupling unit 122, the length of two L shape resonators in 124, live width w1, w2, line length l1, l2, antenna line of rabbet joint size g1, g2, the shape of the first breach CV1 or the second breach CV2 or size, distance etc. between radiation component RAT all can be used to control input end 16 to antenna 140, the signal coupling amount of 142, can avoid by this using extra match circuit at array antenna 14 and the junction of power divider 12, thus reduce area, and the loss caused when reducing signal transmission.
It is noted that the radio-frequency unit 10 of Figure 1A is embodiments of the invention, those of ordinary skill in the art should do different modifications according to this, and is not limited thereto.For example, the second breach CV2 is convenient to arrange extending column BR to be connected in series radiation component RAT, but, in one embodiment, if only need tailored radiation part RAT or spatially limit less, then the second breach CV2 also can not be needed; In like manner, the first breach CV1 also has identical characteristics.In addition, in radio-frequency unit 10, input 16 can be a signal pins, be communicated with post (Via) etc., and it directly connects or is electrically connected at rectangular microstrip line 120, i.e. the signal of input 16 direct feed-in rectangular microstrip line 120.In addition, input 16 can also pass through a male part, is coupled to rectangular microstrip line 120 in electromagnetic coupled mode.At Figure 1A, Tu1BZhong, the mode that two L shape resonator (i.e. coupling unit 122,124) roughly aligns with long limit is arranged, but is not limited thereto, also can the appropriateness adjustment according to system requirements.On the other hand, in radio-frequency unit 10, array antenna 14 is the array antenna framework of one 2 × 10, that is comprises two subarray antennas (or antenna sequence), and each subarray antenna package is containing 10 radiation components.But be not limited thereto, those of ordinary skill in the art also can increase or reduce the radiation number of packages (as being more than or equal to 1) that each subarray antenna comprises accordingly, or increase subarray antenna number.
For example, please refer to Fig. 5, Fig. 5 is the schematic diagram of a radio system 50 of the embodiment of the present invention.Radio system 50 is the array antenna framework of one 4 × 10, and it includes radio-frequency unit 52, a 54 and male part 500.Comparison diagram 5 and Figure 1A known, radio-frequency unit 52 is identical with radio-frequency unit 10, and radio-frequency unit 54 is the mirror image of radio-frequency unit 52, therefore associative operation mode can with reference to aforementioned explanation, it also can avoid using extra match circuit in the junction of array antenna and power divider, to reduce area, and the loss caused when reducing signal transmission.In addition, one end of male part 500 is electrically connected at an input 502, and by electromagnetic coupled mode, by signal feed-in radio-frequency unit 52,54 the rectangular microstrip line that shares.On the other hand, please refer to Fig. 6, Fig. 6 is the schematic diagram of a radio system 60 of the embodiment of the present invention.Radio system 60 is the array antenna framework of one 8 × 10, and it includes radio-frequency unit 62, a 64 and male part 600.Comparison diagram 6 and Fig. 5 known, radio-frequency unit 62,64 is identical with radio-frequency unit 50, and there is the relation of upper and lower mirror image, therefore associative operation mode can with reference to aforementioned explanation, it also can reach avoids the junction at array antenna and power divider to use extra match circuit, to reduce area, and the loss caused when reducing signal transmission.In addition, one end of male part 600 is electrically connected at an input 602, and by electromagnetic coupled mode, by the rectangular microstrip line of signal feed-in radio-frequency unit 62,64.
Above-mentioned radio system 50,60 illustrates that the present invention suitably can derive multiple subarray antenna, reaches high directivity, can be suitable for long range propagation further with concentrated wave beam.In addition, from aforementioned, radio-frequency unit 10 has many adjustable parameters, in this case, by adjusting these parameters, the signal energy that each subarray antenna is distributed is a special ratios, such as, in one embodiment, make the energy distribution ratio of radio system 60 four sub-array antennas from top to bottom of Fig. 6 in (0.001 ~ 0.1) by adjustment spacing: 1:1:(0.001 ~ 0.1) relation, that is power is mainly allocated in central authorities two row subarray antennas.
On the other hand, in the aforementioned embodiment, coupling unit (as 122,124 of Figure 1A) all only comprises a pair of L shape resonator, that is comprises three rank adjustable coupling coefficients and (to be determined by spacing d1 ~ d3, or can with reference to the admittance J of figure 2
01, J
12, J
23).But be not limited thereto, in other embodiments, coupling unit also can have multiple pairs of L shape resonators to form.For example, Fig. 7 is the schematic diagram of a power divider 70 of the embodiment of the present invention.Power divider 70 is in order to be dispensed to output 74,76 by the signal of an input 72, and it can replace the power divider 12 of Figure 1A.Framework and the power divider 12 of power divider 70 are similar, include a rectangular microstrip line 700 and coupling unit 702,704 equally, unlike, coupling unit 702,704 includes two two L shape resonators respectively.In other words, the adjustable coupling coefficient in power divider more than 12 two rank compared by power divider 70, therefore has more design flexibility, to meet different system demand.In addition, power divider 70 comprise two L shape resonator with long limit roughly alignment thereof arrange, but also appropriateness can to stagger according to system requirements, to be not limited thereto.
Continue the embodiment of Fig. 7 and copy Fig. 5 and Fig. 6 to increase the mode of subarray antenna, the present invention can derive 1 × i further and have a radio-frequency unit 80 of j rank coupling coefficient, as shown in Figure 8 A.As shown in Figure 8 A, radio-frequency unit 80 in order to by coupling unit CU_1 ~ CU_i by an input signal Si g conducting to i antenna Ant_1 ~ Ant_i, and each coupling unit include j L shape resonator RES_11 ~ RES_1j ..., RES_i1 ~ RES_ij.Therefore, the functional-block diagram of radio-frequency unit 80 as shown in Figure 8 B.Wherein, R
11~ R
ijrepresent the function square frame of i × j L shape resonator, and R
1A~ R
iArepresent the function square frame of antenna Ant_1 ~ Ant_i; M
11,12~ M
ij, ijrepresent the coupling coefficient between L shape resonator, and M
1j, 1A~ M
ij, iArepresent the coupling coefficient between coupling unit CU_1 ~ CU_i and antenna Ant_1 ~ Ant_i.
Radio-frequency unit 80 is spread out by previous embodiment and is born with more multistage L shape resonator, and therefore have more design flexibility, associated change with reference to aforementioned, can be not repeated herein.
In sum, the present invention by coupling unit with electromagnetic coupled mode conducting rectangular microstrip line and antenna, therefore the distance etc. between the shape of the spacing of each assembly, length, live width, breach or size, radiation component all can be used to the signal coupling amount of control input end to antenna, can avoid by this using extra match circuit in the junction of array antenna and power divider, thus reduce area, and the loss caused when reducing signal transmission, more filter function can be possessed, to provide good He Ne laser degree and to isolate unnecessary signal source.
Claims (10)
1. a power divider, this power divider is used for the signal of an input to be sent to multiple output, and this power divider comprises:
One rectangular microstrip line, this rectangular microstrip line is coupled to this input; And
Multiple coupling unit, the plurality of coupling unit is with this rectangular microstrip line of electromagnetic coupled mode conducting and the plurality of output, the plurality of coupling unit respectively with this rectangular microstrip linear distance one first spacing, each coupling unit comprises at least a pair of L shape resonator, this at least a pair of L shape resonator be arranged between this rectangular microstrip line and an output, and every a pair of L shape resonator comprises:
One first long limit, this first long limit is roughly parallel to this rectangular microstrip line;
One first minor face, this first minor face is approximately perpendicular to this first long limit, and by this first long limit one end to this pair of L shape resonator one center line extend;
One second long limit, this second long limit is roughly parallel to this rectangular microstrip line; And
One second minor face, this second minor face is approximately perpendicular to this second long limit, and to be extended and relative with one end of this first minor face to this center line by the one end on this second long limit, and with this end of this first minor face one second spacing apart;
Wherein, this one first long limit at least in a pair of L shape resonator is adjacent to this rectangular microstrip line, and one second long limit is coupled to this output;
Wherein, this first spacing and this second spacing are relevant to the power ratio of this input to the plurality of output.
2. power divider as claimed in claim 1, wherein this rectangular microstrip line is coupled to this input with direct connected mode.
3. power divider as claimed in claim 1, this power divider also comprises a male part, this male part is electrically connected at this input and is coupled to this rectangular microstrip line in electromagnetic coupled mode, makes this rectangular microstrip line be coupled to this input by this male part.
4. power divider as claimed in claim 1, wherein this at least a pair of L shape resonator be arranged between this rectangular microstrip line and this output in the mode roughly alignd in long limit.
5. a radio-frequency unit, this radio-frequency unit comprises:
One power divider, this power divider is used for the signal of an input to be sent to multiple output, and this power divider comprises:
One rectangular microstrip line, this rectangular microstrip line is coupled to this input; And
Multiple coupling unit, the plurality of coupling unit is with this rectangular microstrip line of electromagnetic coupled mode conducting and the plurality of output, the plurality of coupling unit respectively with this rectangular microstrip linear distance one first spacing, each coupling unit comprises at least a pair of L shape resonator, this at least a pair of L shape resonator be arranged between this rectangular microstrip line and an output, and every a pair of L shape resonator comprises:
One first long limit, this first long limit is roughly parallel to this rectangular microstrip line;
One first minor face, this first minor face is approximately perpendicular to this first long limit, and by this first long limit one end to this pair of L shape resonator one center line extend;
One second long limit, this second long limit is roughly parallel to this rectangular microstrip line; And
One second minor face, this second minor face is approximately perpendicular to this second long limit, and to be extended and relative with one end of this first minor face to this center line by the one end on this second long limit, and with this end of this first minor face one second spacing apart;
Wherein, this one first long limit at least in a pair of L shape resonator is adjacent to this rectangular microstrip line, and one second long limit is coupled to this output; And
Multiple antenna, the plurality of antenna is coupled to the plurality of output, and each antenna comprises:
Multiple radiation component, each radiation component is roughly in a quadrangle, there is one first limit, a Second Edge, one the 3rd limit and one the 4th limit, this first limit and the 3rd limit almost parallel, this Second Edge and the 4th limit almost parallel, and this first limit is substantially vertical with this Second Edge, wherein, each radiation component forms one first breach at this Second Edge, and becomes one second breach at this quadrangle; And
Multiple extending column, each extending column extends to this first breach of this Second Edge of another radiation component by this second breach on the 4th limit of the radiation component in the plurality of radiation component, makes the plurality of radiation component be arranged in a sequence;
Wherein, the plurality of radiation component is arranged in this first breach of this Second Edge of the most front radiation component of this sequence and an output one the 3rd spacing apart of the plurality of output;
Wherein, this first spacing, this second spacing, the 3rd spacing are relevant to the power ratio of this input to the plurality of output.
6. radio-frequency unit as claimed in claim 5, wherein this rectangular microstrip line is coupled to this input with direct connected mode.
7. radio-frequency unit as claimed in claim 5, wherein this power divider also comprises a male part, this male part is electrically connected at this input and is coupled to this rectangular microstrip line in electromagnetic coupled mode, makes this rectangular microstrip line be coupled to this input by this male part.
8. radio-frequency unit as claimed in claim 5, wherein this at least a pair of L shape resonator be arranged between this rectangular microstrip line and this output in the mode roughly alignd in long limit.
9. radio-frequency unit as claimed in claim 5, wherein each radiation component of each antenna also comprises:
One the one L shape extension, a L shape extension is parallel to this first limit mode with long limit is extended by this first limit; And
One the 2nd L shape extension, the 2nd L shape extension is parallel to the 3rd limit mode with long limit is extended by the 3rd limit.
10. radio-frequency unit as claimed in claim 5, wherein each extending column is with two radiation components adjacent in the plurality of radiation component of mode conducting of electromagnetic coupled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310322843.9A CN104347921B (en) | 2013-07-29 | 2013-07-29 | Power divider and radio-frequency unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310322843.9A CN104347921B (en) | 2013-07-29 | 2013-07-29 | Power divider and radio-frequency unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104347921A true CN104347921A (en) | 2015-02-11 |
| CN104347921B CN104347921B (en) | 2017-03-01 |
Family
ID=52503052
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310322843.9A Active CN104347921B (en) | 2013-07-29 | 2013-07-29 | Power divider and radio-frequency unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104347921B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106448099A (en) * | 2016-08-31 | 2017-02-22 | 国网山东省电力公司菏泽供电公司 | Remote monitoring system for running environments of ring main unit |
| WO2023137770A1 (en) * | 2022-01-24 | 2023-07-27 | Huawei Technologies Co., Ltd. | Antenna apparatus, antenna system and base station |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2712608A1 (en) * | 1976-05-04 | 1977-11-10 | Ball Corp | RF GROUP ANTENNA WITH RADIATING SLOT OPENINGS |
| SU1381621A1 (en) * | 1986-04-07 | 1988-03-15 | Киевский Политехнический Институт Им.50-Летия Великой Октябрьской Социалистической Революции | Frequency divider |
| US20040183727A1 (en) * | 2003-03-14 | 2004-09-23 | Sunwoo Communication Co., Ltd. | Dual-band omnidirectional antenna for wireless local area network |
| US20080211720A1 (en) * | 2004-08-17 | 2008-09-04 | Thomas Hansen | Antenna Structure Having Patch Elements |
| CN101685899A (en) * | 2008-09-25 | 2010-03-31 | 天津海泰超导电子有限公司 | High-temperature superconducting frequency shunt with preceding stage coupling unit |
| CN101888019A (en) * | 2009-05-13 | 2010-11-17 | 南京理工大学 | Frequency scanning antenna array capable of realizing wide-angle scanning in limited bandwidth |
| CN102403563A (en) * | 2011-11-02 | 2012-04-04 | 华南理工大学 | Powder divider integrating single-frequency bandpass filter |
| CN103107398A (en) * | 2011-11-10 | 2013-05-15 | 启碁科技股份有限公司 | One-in four-out power divider |
-
2013
- 2013-07-29 CN CN201310322843.9A patent/CN104347921B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2712608A1 (en) * | 1976-05-04 | 1977-11-10 | Ball Corp | RF GROUP ANTENNA WITH RADIATING SLOT OPENINGS |
| SU1381621A1 (en) * | 1986-04-07 | 1988-03-15 | Киевский Политехнический Институт Им.50-Летия Великой Октябрьской Социалистической Революции | Frequency divider |
| US20040183727A1 (en) * | 2003-03-14 | 2004-09-23 | Sunwoo Communication Co., Ltd. | Dual-band omnidirectional antenna for wireless local area network |
| US20080211720A1 (en) * | 2004-08-17 | 2008-09-04 | Thomas Hansen | Antenna Structure Having Patch Elements |
| CN101685899A (en) * | 2008-09-25 | 2010-03-31 | 天津海泰超导电子有限公司 | High-temperature superconducting frequency shunt with preceding stage coupling unit |
| CN101888019A (en) * | 2009-05-13 | 2010-11-17 | 南京理工大学 | Frequency scanning antenna array capable of realizing wide-angle scanning in limited bandwidth |
| CN102403563A (en) * | 2011-11-02 | 2012-04-04 | 华南理工大学 | Powder divider integrating single-frequency bandpass filter |
| CN103107398A (en) * | 2011-11-10 | 2013-05-15 | 启碁科技股份有限公司 | One-in four-out power divider |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106448099A (en) * | 2016-08-31 | 2017-02-22 | 国网山东省电力公司菏泽供电公司 | Remote monitoring system for running environments of ring main unit |
| CN106448099B (en) * | 2016-08-31 | 2019-09-06 | 国网山东省电力公司菏泽供电公司 | A kind of ring network cabinet running environment remote supervision system |
| WO2023137770A1 (en) * | 2022-01-24 | 2023-07-27 | Huawei Technologies Co., Ltd. | Antenna apparatus, antenna system and base station |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104347921B (en) | 2017-03-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9099985B2 (en) | Power divider and radio-frequency device | |
| US10008779B2 (en) | Dielectric-free metal-only dipole-coupled radiating array aperture with wide field of view | |
| EP2117077B1 (en) | Radar antenna assembly | |
| US9261584B2 (en) | Power divider and radio-frequency transceiver system | |
| CN106207453B (en) | A kind of defect for micro-strip array antenna ground decoupling arrangements | |
| US20140043189A1 (en) | Dielectric resonator array antenna | |
| CN107078380B (en) | Wireless electronic device | |
| US20030034917A1 (en) | Two-frequency antenna, multiple-frequency antenna, two- or multiple-frequency antenna array | |
| CN106469848B (en) | A kind of broadband paster antenna based on double resonance mode | |
| KR101727488B1 (en) | MIMO array antenna for multiplexing massive Multi-Input-Multi-Output communications | |
| CN111817001A (en) | Ka wave band is based on 1X 4 plane phased array of liquid crystal reflection formula looks ware | |
| CN111430937A (en) | Integrated multi-beam feed network based on Butler matrix | |
| CN110571537A (en) | phased array antenna based on continuously adjustable substrate integrated waveguide phase shifter | |
| CN114243267A (en) | Ka-band broadband dual-circularly-polarized antenna unit and array based on ridge waveguide | |
| CN104347921A (en) | Power divider and radio unit | |
| EP3830903B1 (en) | Broadband antenna having polarization dependent output | |
| US20230187835A1 (en) | MxN MILLIMETER WAVE AND TERAHERTZ PLANAR DIPOLE END-FIRE ARRAY ANTENNA | |
| RU92745U1 (en) | CONTROLLED POLARIZED ANTENNA Fragment of a PHASED ANTENNA ARRAY | |
| CN107978831B (en) | Weak coupling electric bridge and double-frequency coaxial array antenna based on electric bridge | |
| Qu et al. | Low-cost periodic sparse cavity-backed phased array based on multiport elements | |
| CN103974405A (en) | Power distributor and radio frequency transceiving system | |
| CN109672026B (en) | Modularized integrated broadband millimeter wave waveguide slot antenna array | |
| Temga et al. | 28GHz-band 2x2 patch antenna module vertically integrated with a compact 2-D BFN in broadside coupled stripline structure | |
| US20220368026A1 (en) | Planar monolithic combiner and multiplexer for antenna arrays | |
| CN107123854B (en) | Frequency-phase hybrid electric scanning double-slit array antenna based on single-ridge serpentine waveguide |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |