CN105281005A - Microwave multifunctional eight-port device - Google Patents
Microwave multifunctional eight-port device Download PDFInfo
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- CN105281005A CN105281005A CN201410306849.1A CN201410306849A CN105281005A CN 105281005 A CN105281005 A CN 105281005A CN 201410306849 A CN201410306849 A CN 201410306849A CN 105281005 A CN105281005 A CN 105281005A
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Abstract
The invention provides a microwave multifunctional eight-port device, which comprises four planar magic Ts and a 90-degree phase shifter, and is characterized in that two input ports of the magic T1 respectively serve as a port 1 and a port 2; two input ports of the magic T2 respectively serve as a port 3 and a port 4; two input ports of the magic T3 respectively serve as a sum output port of the magic T1 and a sum output port of the magic T2, and a sum output port and a difference output port of the magic T3 respectively serve as a port 5 and a port 6; and a difference output port of the magic T1 is connected with the 90-degree phase shifter, the other end of the 90-degree phase shifter serves as one of two input ports of the magic T4, the other input port of the magic T4 is a difference output port of the magic T2, and a sum output port and a difference output port of the magic T4 respectively serve as a port 7 and a port 8. The microwave multifunctional eight-port device provided by the invention can realize a dual-linear polarizer, a dual-circular polarizer, a six-port junction and a dual six-port junction without designing the devices independently, effectively improves reliability and maintainability of a microwave system, and satisfies microwave circuit and system modularization requirements.
Description
Technical field
The present invention relates to a kind of multi-functional eight port devices that can be used for microwave measurement and microwave system, particularly relate to a kind of dual-linear polarization device that both can be used for being formed positive and negative forty-five degree line polarized wave, also can be used for the double-circle polarization device forming left-right-hand circular polarization ripple, also can be used for measuring the six-port junction of microwave network reflection coefficient and measurement two microwave signal complex ratios, the multifunction microwave device of Dual six-port knot.
Background technology
Microwave double-circle polarization device is connected with antenna and can be used to simultaneously radiation and (or) receive circularly polarised wave, can be used for the various occasion needing circularly polarised wave.Six-port microwave knot can be used to the reflection coefficient (comprising modulus value and argument) measuring microwave one port devices, compares expensive vector network analyzer on cost, has great advantage.Six-port microwave knot also can measure the complex ratio of two microwave signals, based on the various radars which form based on Six―port technique, as the range radar that tests the speed based on Six―port technique, based on the direction of arrival test radar of Six―port technique, based on the automobile collision avoidance radar of Six―port technique, based on the software and radio technique etc. of six ports.In recent years, the fast development of Digital Signal Processing has driven the development of the radar based on Six―port technique.Correspondingly, in order to test four scattering parameters of dual-port microwave device, must adopt two independently six ports be built into Dual six-port system.And based in the direction of arrival test macro of six ports, mutually fuzzy in order to eliminate survey, two also must be adopted to overlap independently six-port system.Microwave power divider is widely used in the occasions such as aerial array feed and power amplification, is one of primary element in microwave system.
The limitation of prior art situation is: in various application scenario, and various microwave device needs design separately as double-circle polarization device, six-port junction etc., cannot substitute mutually.And in microwave circuit and microwave system, in order to improve reliability and the ease for maintenance of system, more and more urgent to the modularization demand of parts.Therefore, need a kind ofly can meet microwave circuit and system applies the multifunctional modular device required.
Summary of the invention
The invention provides a kind of structure that can be used as the multi-functional eight port microwave devices of dual-linear polarization device, double-circle polarization device, six-port junction, Dual six-port knot etc., this device is made up of four identical Planar Magic-Ts and 90 ° of phase shifters, wherein
Two input ports of evil spirit T1 are respectively as port one and port 2;
Two input ports of evil spirit T2 are respectively as port 3 and port 4;
Two input ports of evil spirit T3 be respectively magic T1 with delivery outlet with magic T2's and delivery outlet, magic T3 with delivery outlet with differ from delivery outlet respectively as port 5 and port 6;
The poor delivery outlet of evil spirit T1 connects a 90-degree phase shifter, and the other end of 90-degree phase shifter is as one of two input ports of magic T4, and another input port of magic T4 is the poor delivery outlet of magic T2, magic T4 with delivery outlet and differ from delivery outlet respectively as port 8 and port 7; Wherein
When port 5 input signal, port one exports to port 4 constant amplitude homophase, and port 6, port 7, port 8 are isolated port, does not export; When port 6 input signal, port one exports to port 4 constant amplitude, and phase place is respectively 180 degree, 180 degree, 0 degree, 0 degree, and port 5, port 7, port 8 are isolated port, does not export; When port 7 input signal, port one exports to port 4 constant amplitude, and phase place is respectively 270 degree, 90 degree, 180 degree, 0 degree, and port 5, port 6, port 8 are isolated port, does not export; When port 8 input signal, port one exports to port 4 constant amplitude, and phase place is respectively 90 degree, 270 degree, 180 degree, 0 degree, and port 5, port 6, port 7 are isolated port, does not export.
By the using method that multi-functional for microwave of the present invention eight port devices are used as dual-linear polarization device be:
Port 7 and port 8 connect matched load, input signal inputs from port 5 and port 6, now multi-functional eight port devices of microwave become six-port circuit, port one to port 4 respectively with the antenna element A of radiation polarized wave, B, C, D connects, antenna element A, B, C, the greatest irradiation direction of D is zenith direction, i.e. z-axis direction, wherein antenna element A, the polarised direction of B is identical, antenna element C, the polarised direction of D is identical, antenna element A, B and antenna element C, D polarization orthogonal, antenna element A, B, C, the right side of D is placed in respectively " ten " word, left, under, on upper four angles, symmetrical placement,
When input signal inputs from port 5, because the phase of port 5 to port one, port 2, port 3, port 4, so radiation-curable positive 45 degree of line polarization waves;
When input signal inputs from port 6, because the phase difference of port 6 to port one, port 2, port 3, port 4 is followed successively by 180 °, 180 °, 0 °, 0 °, so radiation-curable negative 45 degree of line polarization waves;
When input signal inputs from port 5 and port 6, because port 5 and port 6 are isolated simultaneously, launch so polarization diversity can be realized, i.e. the positive 45 degree of line polarization waves of radiation simultaneously and negative 45 degree of line polarization waves; When antenna is as reception antenna, port 5 receives only positive 45 degree of line polarization waves, and port 6 receives only negative 45 degree of line polarization waves, can realize polarization diversity and receive; Or port 5 launches positive 45 degree of line polarization waves as emission port, port 6 receives negative 45 degree of line polarization waves as receiving port, and transmitting-receiving can ensure desirable isolation; Port 6 can be used as emission port, and now same port 5 receives positive 45 degree of line polarization waves, transceiver insulation.
By the using method that multi-functional for microwave of the present invention eight port devices are used as double-circle polarization device be:
Port 5 and port 6 connect matched load, input signal inputs from port 7 and port 8, form six-port circuit, port one is connected with antenna element A, B, C, D of radiation polarized wave respectively to port 4, the greatest irradiation direction of antenna element A, B, C, D is zenith direction, i.e. z-axis direction, wherein the polarised direction of antenna element A, B is contrary, the polarised direction of antenna element C, D is contrary, antenna element A, B and antenna element C, D polarization orthogonal, antenna element A, B, C, D are placed on the right side of " ten " word, a left side, upper and lower four angles respectively, symmetrically place;
When input signal inputs from port 5, because the phase difference of port 5 to port one, port 2, port 3, port 4 is followed successively by 270 °, 90 °, 180 °, 0 °, so radiation-curable left-hand circular polarization ripple;
When input signal inputs from port 6, because the phase difference of port 6 to port one, port 2, port 3, port 4 is followed successively by 90 °, 270 °, 180 °, 360 °, so radiation-curable right-handed circular polarization ripple;
When input signal inputs from port 5 with port 6 simultaneously, because port 5 and port 6 are isolated, launch so polarization diversity can be realized, i.e. radiation left-hand circular polarization ripple and right-handed circular polarization ripple while; When antenna is reception antenna entirely, port 5 receives only left-hand circular polarization ripple, and port 6 receives only right-handed circular polarization ripple, can realize polarization diversity and receive; Or port 5 launches left-hand circular polarization ripple as emission port, and port 6 receives the right-handed circular polarization ripple reflected as receiving port, transmitting-receiving also can ensure desirable isolation; Port 6 also can be used as emission port, and now port 5 receives the left-hand circular polarization ripple reflected, transceiver insulation.
By the using method that multi-functional for microwave of the present invention eight port devices are used as six-port junction be:
Multi-functional eight port devices of microwave can be equivalent to eight kinds of six-port junctions, are respectively:
When port one connects power meter respectively to port 4, input port, to being respectively port 5 and port 7, port 5 and port 8, port 6 and port 7, port 6 and port 8 four kinds of situations, has four kinds of six-port junction structures;
When port 5 to port 8 connects power meter, input port, to being respectively port one and port 3, port one and port 4, port 2 and port 3, port 2 and port 4 four kinds of situations, has four kinds of six-port junction structures.
The using method multi-functional for microwave of the present invention eight port devices being used as nested Dual six-port knot is:
Each of the port one-8 of multi-functional eight port microwave devices connects power detector P1, P2, P3, P4, P5, P6, P7 and a P8 separately,
Using the port one of multi-functional eight port microwave devices and 2 as first group of port, select any one port in first group of port, between this port and corresponding power detector, connect a circulator H1,
Using the port 3 and 4 of multi-functional eight port microwave devices as second group of port, select any one port in second group of port, between this port and corresponding power detector, connect a circulator H2,
Using the port 5 and 6 of multi-functional eight port microwave devices as the 3rd group of port, in the 3rd group of port, select any one port, between this port and corresponding power detector, connect a circulator H3,
Using the port 7 and 8 of multi-functional eight port microwave devices as the 4th group of port, in the 4th group of port, select any one port, between this port and corresponding power detector, connect a circulator H4,
Wherein the input port of H1 and the input port of H2 are respectively as two input signal ports of first set six port, and the input port of H3 and the input port of H4 are respectively as two input signal ports of the second cover six ports; And
Between first set six port input signal, P is passed through in the demodulation of relation
5, P
6, P
7, P
8power meter reading calculates, and between the second cover six port input signals, P is passed through in the demodulation of relation
1, P
2, P
3, P
4power meter reading calculates, and four input signals are isolated between two.
The multi-functional eight port microwave devices of microwave of the present invention, wherein Planar Magic-T uses wideband microband ring-shape bridge.
In one embodiment of the invention, the relative dielectric constant of wideband microband ring-shape bridge used medium plate is 2.2, and dielectric thickness is 0.8mm.
In one embodiment of the invention, the operating frequency of wideband microband ring-shape bridge is 3GHz, and port identity impedance is 50 Ω, and corresponding live width is 2.47mm; The ring girth of ring-shape bridge is frequency guide wavelength centered by λ g, λ g, and namely the live width of ring is 1.9mm, and the girth of ring is 73.3mm; The characteristic impedance of ring is 59 Ω, and corresponding live width is 1.9mm.
In one embodiment of the invention, the live width that 90-degree phase shifter is corresponding is 2.47mm, and line length is 18mm.
Multi-functional eight port microwave devices of the present invention can realize dual-linear polarization device, double-circle polarization device, six-port junction, Dual six-port knot, do not need to design separately these devices, effectively improve reliability and the ease for maintenance of microwave system, meet microwave circuit and system modular needs.
Accompanying drawing explanation
Fig. 1 illustrates structure and the composition of multi-functional eight port microwave devices, and wherein Fig. 1 (a) illustrates principle structure, and Fig. 1 (b) illustrates Planar Magic-T circuit structure;
Fig. 2 illustrates the circuit structure of multi-functional eight port microwave devices;
Fig. 3 illustrates according to the present invention, multi-functional eight port microwave devices are used as the example of dual-linear polarization device, wherein Fig. 3 (a) illustrates that multi-functional eight port microwave devices are used as the port connected mode of dual-linear polarization device, and Fig. 3 (b) and 3 (c) illustrate the principle schematic of the positive and negative 45 degree of line polarization waves of radiation respectively;
Fig. 4 illustrates according to the present invention, multi-functional eight port microwave devices are used as the example of double-circle polarization device, wherein Fig. 4 (a) illustrates that multi-functional eight port microwave devices are used as the port connected mode of double-circle polarization device, and Fig. 4 (b) and 4 (c) illustrate the principle schematic of radiation left-right-hand circular polarization ripple respectively;
Fig. 5 illustrates according to the present invention, multi-functional eight port microwave devices are used as the structural representation of six-port junction, and wherein Fig. 5 (a), (b), (c), (d), (e), (f), (g) and (h) illustrate eight kinds of equivalent six-port junctions and port connected mode respectively;
Fig. 6 illustrates according to the present invention, and multi-functional eight port microwave devices are used as the connection diagram of nested Dual six-port knot.
Embodiment
Now by reference to the accompanying drawings multi-functional eight ports that the present invention proposes are described further: as shown in Fig. 1 (a), multi-functional eight port microwave devices of the present invention are made up of four Planar Magic-Ts and a 90-degree phase shifter.Two input ports of evil spirit T1 are respectively as port one and port 2, two input ports of evil spirit T2 are respectively as port 3 and port 4, evil spirit T1 with delivery outlet and magic T2 with two input ports of delivery outlet as magic T3, evil spirit T3 with delivery outlet with difference delivery outlet respectively as port 5 and port 6, the poor delivery outlet of evil spirit T1 connects two input ports of poor delivery outlet as magic T4 of a 90-degree phase shifter and magic T2, magic T4 with delivery outlet and differ from delivery outlet respectively as port 8 and port 7.
When port 5 input signal, port one exports to port 4 constant amplitude homophase, and port 6, port 7, port 8 are isolated port, does not export.When port 6 input signal, port one exports to port 4 constant amplitude, and phase place is respectively 180 degree, 180 degree, 0 degree, 0 degree, and port 5, port 7, port 8 are isolated port, does not export.When port 7 input signal, port one exports to port 4 constant amplitude, and phase place is respectively 270 degree, 90 degree, 180 degree, 0 degree, and port 5, port 6, port 8 are isolated port, does not export.When port 8 input signal, port one exports to port 4 constant amplitude, and phase place is respectively 90 degree, 270 degree, 180 degree, 0 degree, and port 5, port 6, port 7 are isolated port, does not export.
As shown in Fig. 1 (b), the design of multi-functional eight port microwave devices of the present invention comprises the design of Planar Magic-T, 90-degree phase shifter design.Planar Magic-T selects wideband microband ring-shape bridge to realize, and the relative dielectric constant of wideband microband ring-shape bridge used medium plate is 2.2, and dielectric thickness is 0.8mm.The operating frequency of wideband microband ring-shape bridge is 3GHz, and port identity impedance is 50 Ω, and corresponding live width is 2.47mm.The ring girth of ring-shape bridge is frequency guide wavelength centered by λ g, λ g, and namely the live width of ring is 1.9mm, and the girth of ring is 73.3mm.The characteristic impedance of ring is 59 Ω, and corresponding live width is 1.9mm.The live width that 90-degree phase shifter is corresponding is 2.47mm, and line length is 18mm.
The using method being used as dual-linear polarization device of multi-functional eight port microwave devices as shown in Figure 3.Port 7 and the port 8 of multi-functional eight port microwave devices connect matched load, signal inputs from port 5 and port 6, now form the six-port circuit as shown in Fig. 3 (a), port one (A), port 2 (B), port 3 (C), port 4 (D) respectively with the antenna element A of radiation polarized wave, B, C, D connects, antenna element A, B, C, the greatest irradiation direction of D is zenith direction, namely z-axis direction is (not shown, x in z-axis direction and Fig. 3, the plane orthogonal at y-axis place, meet right-hand rule), wherein antenna element A, the polarised direction of B is identical, antenna element C, the polarised direction of D is identical, antenna element A, B and antenna element C, D polarization orthogonal, antenna element A, B, C, the right side of D is placed in respectively " ten " word, left, under, on upper four angles, symmetrical placement.When input signal inputs from port 5, because the phase of port 5 to port one (A), port 2 (B), port 3 (C), port 4 (D), as shown in Fig. 3 (b), so radiation-curable positive 45 degree of line polarization waves.In like manner, when input signal inputs from port 6, the phase difference of port 6 to port one (A), port 2 (B), port 3 (C), port 4 (D) is followed successively by 180 °, 180 °, 0 °, 0 °, as shown in Fig. 3 (c), so radiation-curable negative 45 degree of line polarization waves.When input signal inputs from port 5 with port 6 simultaneously, because port 5 and port 6 are isolated, launch so polarization diversity can be realized, i.e. the positive 45 degree of line polarization waves of radiation simultaneously and negative 45 degree of line polarization waves.By the reciprocity of dual-mode antenna, when antenna is as reception antenna, port 5 receives only positive 45 degree of line polarization waves, and port 6 receives only negative 45 degree of line polarization waves, achieves polarization diversity and receives; Or port 5 launches positive 45 degree of line polarization waves as emission port, port 6 receives negative 45 degree of line polarization waves as receiving port, and transmitting-receiving also can ensure desirable isolation; Port 6 also can be used as emission port, and same port 5 receives positive 45 degree of line polarization waves, transceiver insulation.
The using method being used as double-circle polarization device of multi-functional eight port microwave devices as shown in Figure 4.Port 5 and the port 6 of multi-functional eight port microwave devices connect matched load, when input signal inputs from signal from port 7 and port 8, form the six-port circuit as shown in Fig. 4 (a).Port one is connected with antenna element A, B, C, D of radiation polarized wave respectively to port 4, the greatest irradiation direction of antenna element A, B, C, D is zenith direction, i.e. z-axis direction, wherein the polarised direction of antenna element A, B is contrary, the polarised direction of antenna element C, D is contrary, antenna element A, B and antenna element C, D polarization orthogonal, antenna element A, B, C, D are placed on the right side of " ten " word, a left side, upper and lower four angles respectively, symmetrically place.When input signal inputs from port 5, because the phase difference of port 5 to port one (A), port 2 (B), port 3 (C), port 4 (D) is followed successively by 270 °, 90 °, 180 °, 0 °, as shown in Fig. 4 (b), radiation-curable left-hand circular polarization ripple.In like manner, when input signal inputs from port 6, the phase difference of port 6 to port one (A), port 2 (B), port 3 (C), port 4 (D) is followed successively by 90 °, 270 °, 180 °, 360 °, as shown in Fig. 4 (c), radiation-curable right-handed circular polarization ripple.When port 5 and port 6 input, because port 5 and port 6 are isolated simultaneously, therefore can realize polarization diversity and launch, be i.e. radiation left-hand circular polarization ripple and right-handed circular polarization ripple while.By the reciprocity of dual-mode antenna, when antenna is reception antenna entirely, port 5 receives only left-hand circular polarization ripple, and port 6 receives only right-handed circular polarization ripple, can realize polarization diversity and receive; Or port 5 launches left-hand circular polarization ripple as emission port, and port 6 receives the right-handed circular polarization ripple reflected as receiving port, transmitting-receiving also can ensure desirable isolation; Port 6 also can be used as emission port, and same port 5 receives the left-hand circular polarization ripple reflected, transceiver insulation.
Multi-functional eight port microwave devices are used as the structure of six-port junction as shown in Figure 5.According to the different choice mode connecing power meter port and signal input, eight kinds of six-port junctions can be equivalent to: when port one connects power meter to port 4, input port is to being respectively port 5 and port 7, port 5 and port 8, port 6 and port 7, port 6 and port 8 four kinds of situations, have four kinds of six-port junction structures, respectively as shown in Fig. 5 (a), 5 (b), 5 (c), 5 (d); When port 5 to port 8 connects power meter, input port is to being respectively port one and port 3, port one and port 4, port 2 and port 3, port 2 and port 4 four kinds of situations, also four kinds of six-port junction structures are had, respectively as shown in Fig. 5 (e), 5 (f), 5 (g), 5 (h); Amount to eight kinds of six-port junction structures, and the mode of the phase difference of often kind of six-port junction demodulation two input signal is also not quite similar, as shown in table 1.
Novel eight port microwave network equivalence six-port network eight types of table 1
Multi-functional eight port microwave devices are used as the structure of nested Dual six-port knot as shown in Figure 6, and each of the port one-8 of multi-functional eight port microwave devices connects power detector P1, P2, P3, P4, P5, P6, P7 and a P8 separately.Using the port one of multi-functional eight port microwave devices and 2 as first group of port, select any one port in first group of port, between this port and corresponding power detector, connect a circulator H1.Using the port 3 and 4 of multi-functional eight port microwave devices as second group of port, select any one port in second group of port, between this port and corresponding power detector, connect a circulator H2.Using the port 5 and 6 of multi-functional eight port microwave devices as the 3rd group of port, in the 3rd group of port, select any one port, between this port and corresponding power detector, connect a circulator H3.Using the port 7 and 8 of multi-functional eight port microwave devices as the 4th group of port, in the 4th group of port, select any one port, between this port and corresponding power detector, connect a circulator H4.Wherein the input port of H1 and the input port of H2 are respectively as two input signal ports of first set six port, and the input port of H3 and the input port of H4 are respectively as two input signal ports of the second cover six ports; And, between first set six port input signal, the demodulation of relation is calculated by P5, P6, P7, P8 power meter reading, between second cover six port input signals, the demodulation of relation is calculated by P1, P2, P3, P4 power meter reading, from the nonreciprocity of circulator and the transmission characteristic of former multi-functional eight port microwave devices, four input signals are isolated between two.
The H1-H4 of circulator shown in Fig. 6 be connected to multi-functional eight port microwave devices port one, 4,5, an example between 7 and corresponding power detector.
Claims (9)
1. multi-functional eight port devices of microwave, comprise four Planar Magic-Ts and a 90-degree phase shifter, it is characterized in that
Two input ports of evil spirit T1 are respectively as port one and port 2;
Two input ports of evil spirit T2 are respectively as port 3 and port 4;
Two input ports of evil spirit T3 be respectively magic T1 with delivery outlet with magic T2's and delivery outlet, magic T3 with delivery outlet with differ from delivery outlet respectively as port 5 and port 6;
The poor delivery outlet of evil spirit T1 connects a 90-degree phase shifter, and the other end of 90-degree phase shifter is as one of two input ports of magic T4, and another input port of magic T4 is the poor delivery outlet of magic T2, magic T4 with delivery outlet and differ from delivery outlet respectively as port 8 and port 7; Wherein
When port 5 input signal, port one exports to port 4 constant amplitude homophase, and port 6, port 7, port 8 are isolated port, does not export; When port 6 input signal, port one exports to port 4 constant amplitude, and phase place is respectively 180 degree, 180 degree, 0 degree, 0 degree, and port 5, port 7, port 8 are isolated port, does not export; When port 7 input signal, port one exports to port 4 constant amplitude, and phase place is respectively 270 degree, 90 degree, 180 degree, 0 degree, and port 5, port 6, port 8 are isolated port, does not export; When port 8 input signal, port one exports to port 4 constant amplitude, and phase place is respectively 90 degree, 270 degree, 180 degree, 0 degree, and port 5, port 6, port 7 are isolated port, does not export.
2. the using method that multi-functional eight port devices of microwave as claimed in claim 1 are used as dual-linear polarization device is
Port 7 and port 8 connect matched load, input signal inputs from port 5 and port 6, now multi-functional eight port devices of microwave become six-port circuit, port one to port 4 respectively with the antenna element A of radiation polarized wave, B, C, D connects, antenna element A, B, C, the greatest irradiation direction of D is zenith direction, i.e. z-axis direction, wherein antenna element A, the polarised direction of B is identical, antenna element C, the polarised direction of D is identical, antenna element A, B and antenna element C, D polarization orthogonal, antenna element A, B, C, the right side of D is placed in respectively " ten " word, left, under, on upper four angles, symmetrical placement,
When input signal inputs from port 5, because the phase of port 5 to port one, port 2, port 3, port 4, so radiation-curable positive 45 degree of line polarization waves;
When input signal inputs from port 6, because the phase difference of port 6 to port one, port 2, port 3, port 4 is followed successively by 180 °, 180 °, 0 °, 0 °, so radiation-curable negative 45 degree of line polarization waves;
When input signal inputs from port 5 and port 6, because port 5 and port 6 are isolated simultaneously, launch so polarization diversity can be realized, i.e. the positive 45 degree of line polarization waves of radiation simultaneously and negative 45 degree of line polarization waves; When antenna is as reception antenna, port 5 receives only positive 45 degree of line polarization waves, and port 6 receives only negative 45 degree of line polarization waves, can realize polarization diversity and receive; Or port 5 launches positive 45 degree of line polarization waves as emission port, port 6 receives negative 45 degree of line polarization waves as receiving port, and transmitting-receiving can ensure desirable isolation; Port 6 can be used as emission port, and now same port 5 receives positive 45 degree of line polarization waves, transceiver insulation.
3. the using method that multi-functional eight port devices of microwave as claimed in claim 1 are used as double-circle polarization device is
Port 5 and port 6 connect matched load, input signal inputs from port 7 and port 8, form six-port circuit, port one is connected with antenna element A, B, C, D of radiation polarized wave respectively to port 4, the greatest irradiation direction of antenna element A, B, C, D is zenith direction, i.e. z-axis direction, wherein the polarised direction of antenna element A, B is contrary, the polarised direction of antenna element C, D is contrary, antenna element A, B and antenna element C, D polarization orthogonal, antenna element A, B, C, D are placed on the right side of " ten " word, a left side, upper and lower four angles respectively, symmetrically place;
When input signal inputs from port 5, because the phase difference of port 5 to port one, port 2, port 3, port 4 is followed successively by 270 °, 90 °, 180 °, 0 °, so radiation-curable left-hand circular polarization ripple;
When input signal inputs from port 6, because the phase difference of port 6 to port one, port 2, port 3, port 4 is followed successively by 90 °, 270 °, 180 °, 360 °, so radiation-curable right-handed circular polarization ripple;
When input signal inputs from port 5 with port 6 simultaneously, because port 5 and port 6 are isolated, launch so polarization diversity can be realized, i.e. radiation left-hand circular polarization ripple and right-handed circular polarization ripple while; When antenna is reception antenna entirely, port 5 receives only left-hand circular polarization ripple, and port 6 receives only right-handed circular polarization ripple, can realize polarization diversity and receive; Or port 5 launches left-hand circular polarization ripple as emission port, and port 6 receives the right-handed circular polarization ripple reflected as receiving port, transmitting-receiving also can ensure desirable isolation; Port 6 also can be used as emission port, and now port 5 receives the left-hand circular polarization ripple reflected, transceiver insulation.
4. the using method that multi-functional eight port devices of microwave as claimed in claim 1 are used as six-port junction is that wherein multi-functional eight port devices of microwave can be equivalent to eight kinds of six-port junctions, are respectively:
When port one connects power meter respectively to port 4, input port, to being respectively port 5 and port 7, port 5 and port 8, port 6 and port 7, port 6 and port 8 four kinds of situations, has four kinds of six-port junction structures;
When port 5 to port 8 connects power meter, input port, to being respectively port one and port 3, port one and port 4, port 2 and port 3, port 2 and port 4 four kinds of situations, has four kinds of six-port junction structures.
5. multi-functional eight port devices of microwave as claimed in claim 1 as the using method of nested Dual six-port knot are, wherein
Each of the port one-8 of multi-functional eight port microwave devices connects power detector P1, P2, P3, P4, P5, P6, P7 and a P8 separately,
Using the port one of multi-functional eight port microwave devices and 2 as first group of port, select any one port in first group of port, between this port and corresponding power detector, connect a circulator H1,
Using the port 3 and 4 of multi-functional eight port microwave devices as second group of port, select any one port in second group of port, between this port and corresponding power detector, connect a circulator H2,
Using the port 5 and 6 of multi-functional eight port microwave devices as the 3rd group of port, in the 3rd group of port, select any one port, between this port and corresponding power detector, connect a circulator H3,
Using the port 7 and 8 of multi-functional eight port microwave devices as the 4th group of port, in the 4th group of port, select any one port, between this port and corresponding power detector, connect a circulator H4,
Wherein the input port of H1 and the input port of H2 are respectively as two input signal ports of first set six port, and the input port of H3 and the input port of H4 are respectively as two input signal ports of the second cover six ports; And
Between first set six port input signal, P is passed through in the demodulation of relation
5, P
6, P
7, P
8power meter reading calculates, and between the second cover six port input signals, P is passed through in the demodulation of relation
1, P
2, P
3, P
4power meter reading calculates, and four input signals are isolated between two.
6. as claim 1 to 5 any one as described in the multi-functional eight port microwave devices of microwave, wherein Planar Magic-T uses wideband microband ring-shape bridge.
7. the multi-functional eight port microwave devices of microwave as claimed in claim 6, wherein the relative dielectric constant of wideband microband ring-shape bridge used medium plate is 2.2, and dielectric thickness is 0.8mm.
8. the multi-functional eight port microwave devices of microwave as claimed in claim 7, wherein the operating frequency of wideband microband ring-shape bridge is 3GHz, and port identity impedance is 50 Ω, and corresponding live width is 2.47mm; The ring girth of ring-shape bridge is frequency guide wavelength centered by λ g, λ g, and namely the live width of ring is 1.9mm, and the girth of ring is 73.3mm; The characteristic impedance of ring is 59 Ω, and corresponding live width is 1.9mm.
9. the multi-functional eight port microwave devices of microwave as claimed in claim 7, the live width that wherein 90-degree phase shifter is corresponding is 2.47mm, and line length is 18mm.
Priority Applications (1)
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| CN107959479A (en) * | 2017-10-12 | 2018-04-24 | 北京无线电计量测试研究所 | A kind of microwave planar 180 degree hybrid network |
| CN110838621A (en) * | 2019-11-19 | 2020-02-25 | 北京邮电大学 | Multi-beam antenna feeding device and method |
| CN113540710A (en) * | 2020-04-22 | 2021-10-22 | 华为技术有限公司 | Ferrite switch, microwave antenna and electronic equipment |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106252902A (en) * | 2016-09-28 | 2016-12-21 | 广东工业大学 | A kind of Compact type broadband end-fired array array antenna |
| CN106252902B (en) * | 2016-09-28 | 2023-03-24 | 广东工业大学 | Compact broadband end-fire array antenna |
| CN107959479A (en) * | 2017-10-12 | 2018-04-24 | 北京无线电计量测试研究所 | A kind of microwave planar 180 degree hybrid network |
| CN110838621A (en) * | 2019-11-19 | 2020-02-25 | 北京邮电大学 | Multi-beam antenna feeding device and method |
| CN110838621B (en) * | 2019-11-19 | 2020-11-20 | 北京邮电大学 | Multi-beam antenna feeding device and method |
| CN113540710A (en) * | 2020-04-22 | 2021-10-22 | 华为技术有限公司 | Ferrite switch, microwave antenna and electronic equipment |
| WO2021213385A1 (en) * | 2020-04-22 | 2021-10-28 | 华为技术有限公司 | Ferrite switch, microwave antenna, and electronic device |
| CN113540710B (en) * | 2020-04-22 | 2022-07-22 | 华为技术有限公司 | Ferrite switch, microwave antenna and electronic equipment |
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