CN112864554A - Filtering combining structure and combining phase shifter - Google Patents

Abstract

The invention provides a filtering and combining structure and a combining phase shifter, wherein the filtering and combining structure is used for conducting and connecting the output ends of two filters printed on respective dielectric plates correspondingly, the two dielectric plates are arranged in parallel, the output ends of the two dielectric plates are at least partially overlapped on the projection, and the combining structure comprises through holes arranged on the two dielectric plates corresponding to the output ends and a conducting piece passing through the two through holes to realize the combination of the two output ends. The conducting part of the filtering and combining structure is electrically connected with the output ends of the two filters, filtering signals output by the two filters are obtained, the obtained filtering signals are output to the conducting part, and the conducting part combines and outputs the two filtering signals.

Description

Filtering combining structure and combining phase shifter

Technical Field

The invention belongs to the technical field of mobile communication, and particularly relates to a filtering combination structure and a combination phase shifter with the filtering combination structure.

Background

In the field of mobile communication, a combiner is used for combining multiple paths of signals and outputting one path of signal. However, the multi-path signals often have impurity signals, and the impurity signals are also combined into one path of signals when being combined, but the impurity signals will often widen the bandwidth of the combined signal, so that the center frequency of the combined signal is shifted, which is not beneficial to transmitting the combined signal to the outside, and in order to keep the center frequency of the combined signal not shifted, the impurity signals need to be filtered by a filter before being combined with the multi-path signals.

In order to combine a plurality of signals, a combiner is generally used for combining a plurality of signals, but the combiner has a large and complex structure and is not suitable for being arranged among a plurality of filters. Moreover, the miniaturization of the combiner will affect the electrical performance of the combiner, which is not favorable for combining multiple signals.

Disclosure of Invention

The first objective of the present invention is to provide a filtering and combining structure capable of filtering and combining.

Another object of the present invention is to provide a combiner phase shifter.

The invention is suitable for the purpose of the invention and adopts the following technical scheme:

the first object of the present invention is to provide a filtering and combining structure, for connecting the output ends of two filters printed on respective dielectric plates, wherein the two dielectric plates are parallel to each other, and the output ends of each other are at least partially overlapped in projection, and the combining structure includes via holes disposed on the two dielectric plates corresponding to the output ends and a conducting element passing through the two via holes to combine the two output ends.

Further, the conducting member includes a dielectric plate and a pair of additional conductors printed on the dielectric plate and coupled to each other, the pair of additional conductors are a first additional conductor and a second additional conductor, respectively, the two filters are a first filter and a second filter, respectively, the first additional conductor is electrically connected to the output end of the first filter, and the second additional conductor is electrically connected to the output end of the second filter.

Specifically, the first additional conductor and the second additional conductor are respectively printed on two sides of the dielectric plate of the conducting member and are arranged in a capacitive coupling manner.

Furthermore, the first additional conductor and the second additional conductor of the conducting piece at least present an interdigital coupling structure on the same surface of the dielectric plate, so as to realize capacitive coupling arrangement.

Furthermore, the first additional conductor and the second additional conductor of the conducting piece are printed on two sides of the dielectric plate, the two additional conductors are conducted through the metalized through holes, and the first additional conductor and the second additional conductor are connected in an interdigital coupling structure in each side of the dielectric plate.

Further, each of the first additional conductor and the second additional conductor includes a plurality of additional conductor strips arranged in parallel with each other, and the additional conductor strip of the first additional conductor and the additional conductor strip of the second additional conductor are arranged so as to overlap at least partially in projection on different surfaces of the dielectric plate.

In one embodiment, the conducting member includes a connecting pad and a probe standing on the surface of the connecting pad, and the probe passes through the via hole on the dielectric plate of the two filters, so that the connecting pad is electrically connected with the output end of one of the filters, and the probe is electrically connected with the output end of the other filter.

Furthermore, the two filters are respectively packaged in two parallel shielding cavities, and the two shielding cavities are provided with connecting ports for the conducting piece in advance.

Another objective of the present invention is to provide a combiner phase shifter, which includes two sets of phase shift circuits, each set of phase shift circuits is used to divide the signal of a single independent frequency band into multiple signals with different phases, and each of the two independent frequency bands has one signal respectively conducted to a corresponding filter for filtering and then outputting, and the combiner phase shifter is characterized in that: the filtering and combining structure is implemented based on the primary purpose and is used for combining signals output by the two filters after filtering.

Furthermore, a group of phase shift circuits and filters corresponding to the same independent frequency band are printed on the same shared dielectric plate.

Compared with the prior art, the invention has the following advantages:

firstly, the conducting element of the filtering and combining structure of the invention is electrically connected with the output ends of two filters, the two filters filter signals of partial frequency bands in the feed-in signals to obtain filtering signals, and combine the two filtering signals obtained by filtering through the conducting element, and the conducting element combines the two filtering signals and outputs the combined signals.

Secondly, the filtering and combining structure of the invention is provided with a through hole corresponding to the output ends of the two filters respectively, so that the conducting piece can be arranged on the two through holes to connect the two filters, receive the filtering signals output by the two filters and combine the two filtering signals. The conducting piece is simple in structure and convenient to produce and manufacture.

And thirdly, the conducting piece of the filtering combining structure can widen the use frequency band, optimize the phase dispersion and improve the intermodulation index.

Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Drawings

The foregoing and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic circuit structure diagram of the filtering combiner structure of the present invention.

Fig. 2 is a perspective view of a first filter dielectric plate provided by the present invention, showing a front surface thereof.

Fig. 3 is a front perspective view of a first filter provided by the present invention, a first conductor on the front side of a dielectric plate is shown in solid lines, and a second conductor on the back side of the dielectric plate is shown in dashed lines.

Fig. 4 is a perspective view of a second filter dielectric plate provided by the present invention, showing the front surface thereof.

Fig. 5 is a front perspective view of a second filter provided by the present invention, in which a second conductor on the front surface of a dielectric plate is shown in solid lines and a first conductor on the back surface of the dielectric plate is shown in broken lines.

Fig. 6 is a schematic structural diagram of a conducting element of a filtering combiner structure according to an embodiment of the present invention.

Fig. 7 is a front view of a conducting element of a filtering combiner structure according to an embodiment of the present invention.

Fig. 8 is a schematic reverse side view of a conducting element of a filtering combiner structure according to an embodiment of the present invention.

Fig. 9 is a schematic structural diagram of a conducting element of a filtering combiner structure according to an embodiment of the present invention.

Fig. 10 is a schematic view of a conducting element of a filtering combiner structure according to an embodiment of the present invention, where the left side illustrates a front side of the conducting element, and the right side illustrates a back side of the conducting element.

Fig. 11 is a schematic structural diagram of a conducting element of a filtering combiner structure according to an embodiment of the present invention.

Fig. 12 is a perspective view of a conducting element of a filtering and combining structure according to an embodiment of the present invention.

Fig. 13 is a schematic structural diagram of a combining phase shifter of the present invention.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below by referring to the drawings are exemplary only for the purpose of illustrating the present invention and are not to be construed as limiting the present invention.

As used herein, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. It will be understood that when an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements may also be present. Further, "connected" or "coupled" as used herein may include wirelessly connected or wirelessly coupled. As used herein, the term "and/or" includes all or any element and all combinations of one or more of the associated listed items.

It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

The invention provides a filtering and combining structure which comprises a conducting piece, wherein the conducting piece is electrically connected with the output ends of a plurality of filters so as to receive a plurality of filtering signals respectively filtered by the filters, and the filtering signals are combined and output through the conducting piece.

In order to better disclose the technical solution of the present invention, in an exemplary embodiment of the present invention, referring to fig. 1, the filtering combination structure 10 includes a conducting element 50, and the conducting element 50 is electrically connected to the two filters, and combines filtering signals respectively output by the two filters. The structure of the filter provided by the present invention is described below:

the filter 30 includes a dielectric plate 31 and two conductors, which are a first conductor and a second conductor, respectively, the first conductor is disposed on the front surface of the dielectric plate 31, and the second conductor is disposed on the back surface of the dielectric plate 31.

Referring to fig. 2, the first conductor includes two parallel molding lines disposed on the front surface of the dielectric board 31, the two molding lines are a first molding line 32 and a second molding line 33, the two molding lines are conducted with each other through a through-band, a feeding point 321 is disposed at an end of the first molding line 32 not electrically connected to the second molding line 33, an external signal is fed into the filter 30 from the feeding point 321, an output end 332 is disposed at an end of the second molding line 33 not electrically connected to the first molding line 32, and the output end 332 is electrically connected to a metalized via 333.

The second conductor includes two open lines provided on the reverse surface of the dielectric plate 31, the two open lines being a first open line 34 and a second open line 35, respectively, the two open lines not being connected. One end of the open circuit line is provided with a coupling piece, and the other end is open circuit.

Referring to fig. 3, projections of the two shaping lines of the first conductor in the vertical direction (thickness direction) of the dielectric plate 31 (hereinafter, the projections are both referred to as projections in the vertical direction of the dielectric plate 31) and projections of the two open lines of the second conductor are parallel to each other and are arranged side by side.

The projection of the first coupling piece 341 of the first opening line 34 coincides with the projection of the part of the first shaping line 32 (the part of the first shaping line 32 is referred to as the first coupling portion 322). Since the projection of the first coupling piece 341 coincides with the projection of the first coupling portion 322, the first coupling piece 341 may couple a signal of a part of the frequency band passing through the first shaping line 32 from the first coupling portion 322 thereto, and output the signal of the part of the frequency band obtained by the coupling to the open end of the first open-circuit line 34, and the signal of the rest of the frequency band on the first shaping line 32 will be output to the second shaping line 33, that is, a resonance zero point (called a first resonance zero point) is generated at the position where the projection of the first coupling piece 341 coincides with the projection of the first coupling portion 322, and the signal of a part of the frequency passing through the first resonance zero point is passed or suppressed.

The coupling piece of the second opening line 35 (this coupling piece is referred to as a second coupling piece 351) has a projection of the second coupling piece 351 that overlaps with a projection of a part of the second shaping line 33 (a part of the second shaping line 33 is referred to as a second coupling portion 331). Since the projection of the second coupling piece 351 coincides with the projection of the second coupling portion 331, the second coupling piece 351 can couple a part of the frequency band signals of the remaining frequency band signals passing through the second shaping line 33 from the second coupling portion 331 to the second coupling portion 331, and output a part of the frequency band signals obtained by the coupling to the open end of the second open-circuit line 35, and output the frequency band signals not filtered out on the second shaping line 33 (the frequency band signals not filtered out are referred to as filtered signals) to the output end 332 of the second shaping line 33, and then output the filtered signals to the metalized via 333 electrically connected to the output end 332, that is, a zero point of resonance (the zero point of resonance is referred to as a second zero point) is generated at the position where the projection of the second coupling piece 351 coincides with the projection of the second coupling portion, or the signals passing through a part of the frequency of the second resonance are suppressed.

Thus, two resonance zeros are generated on the filter 30, so that the signal fed into the filter 30 will be filtered out of a part of the frequency band after passing through the first resonance zero and the second resonance zero, thereby achieving the purpose of filtering.

The above is the basic principle of the filter provided by the present invention, the two filters provided in the exemplary embodiment of the present invention are the first filter 30 and the second filter 40, respectively, and the foregoing description of the basic principle of the filter is based on the structure of the first filter 30, but should not be construed as limiting the structure of the filter. The structure of the first filter 30 and the second filter 40 is described in detail below.

The first filter 30 and the second filter 40 are arranged in parallel to each other in the vertical direction, the projection of the dielectric plate of the first filter 30 and the projection of the dielectric plate 41 of the second filter 40 coincide with each other, and the projection of the via hole 333 of the first filter 30 and the projection of the via hole 433 of the second filter 40 coincide with each other.

The conducting element 50 is inserted through the two through holes so as to receive two filtering signals output by the first filter 30 and the second filter 40 through the respective through holes (the filtering signal output by the first filter 30 is referred to as a first filtering signal, and the filtering signal output by the second filter 40 is referred to as a second filtering signal), and the conducting element 50 combines the first filtering signal and the second filtering signal.

In the exemplary embodiment of the present invention, the first filter 30 and the second filter 40 filter out signals of different frequency bands, so that the first filter 30 and the second filter 40 filter out signals of different frequency bands, the first conductor and the second conductor of the first filter 30 and the second filter 40 have slightly different structures.

Specifically, in the first filter 30, referring to fig. 2, the first shaping line 32 is in a through-band type, and the second shaping line 33 is wound in a pulse square wave shape. The first open line 34 is disposed along the extending path of the first shaping line 32, and the first coupling tab 341 of the first open line 34 is disposed near the feeding point 321; the second open line 35 is disposed along an extending path of the second shaping line 33, and the second coupling piece 351 of the second open line 35 is disposed near an end of the second shaping line 33 far from the via 333.

In the second filter 40, referring to fig. 5, the first and second molding lines 42 and 43 are each in a through-band type, the first coupling portion 422 is disposed on the first molding line, and the second coupling portion 431 is disposed on the second molding line. The first open line 44 is disposed along an extending path of the first shaping line 42, and the first coupling piece 441 of the first open line 44 is disposed near an end of the first shaping line 42 away from the feeding point 421; the second opening line 45 is disposed along an extending path of the second shaping line 43, and the second coupling piece 451 of the second opening line 45 is disposed near an end of the second shaping line 43 far from the via 433.

Referring to fig. 1, the reverse surface of the dielectric plate 31 of the first filter 30 is opposite to the reverse surface of the dielectric plate 41 of the second filter 40, and the front surface of the dielectric plate 31 of the first filter 30 faces different directions from the front surface of the dielectric plate 41 of the second filter 40, that is, the second conductor of the first filter 30 is opposite to the second conductor of the second filter 40, so that the first conductor of the first filter 30 is not coupled to the first conductor of the second filter 40, and the two filters are prevented from interfering with each other for filtering.

In an exemplary embodiment of the present invention, referring to fig. 6-8, the conducting member 50 comprises a dielectric plate 51 and two attached conductors. The via hole 333 of the first filter 30 and the via hole 433 of the second filter 40 correspond to different positions in the longitudinal direction of the via 50 (the thickness direction of the dielectric plate of the first filter 30).

The two additional conductors are a first additional conductor 52 and a second additional conductor 53, respectively, the first additional conductor 52 is provided on the front surface of the dielectric plate 51, the second additional conductor 53 is provided on the back surface of the dielectric plate 51, and the first additional conductor 52 and the second additional conductor 53 are provided in capacitive coupling with each other.

Referring to fig. 7, the first attaching conductor 52 includes a first coupling body 521 and a second coupling body 522, and a separation strip 523 for separating the first coupling body 521 and the second coupling body 522. The first coupling body 521 and the second coupling body 522 both include a plurality of additional conductor strips 524, and the multiple additional conductor strips 524 in the same coupling body are parallel and extend in the same direction, so that the first coupling body 521 and the second coupling body 522 are in a palm shape or a comb shape and are arranged in parallel and crossed, and thus the first coupling body 521 and the second coupling body 522 are mutually crossed and coupled in parallel, so that the first additional conductor 52 forms a cross-finger coupling structure.

Referring to fig. 8, the second attachment conductor 53 includes a third coupling body 531 and a fourth coupling body 532, and a separation band 533 for separating the third coupling body 531 and the fourth coupling body 532. The third coupling body 531 and the fourth coupling body 532 both include a plurality of additional conductive strips 534, and the additional conductive strips 534 in the same coupling body are parallel and extend toward the same direction, so that the third coupling body 531 and the fourth coupling body 532 are in a palm-like shape or comb-like shape, and are arranged in parallel and crossed, so that the third coupling body 531 and the fourth coupling body 532 are mutually crossed and coupled in parallel, and the second additional conductive body 53 forms a cross-finger coupling structure.

The dielectric plate 51 of the conducting member 50 is further provided with two via holes, which are a first via hole 54 and a second via hole 55. The first via 54 is electrically connected to the first coupling element 521 on the front surface of the dielectric board 51 and the third coupling element 531 on the back surface of the dielectric board 51; the second via 55 electrically connects the second coupling body 522 on the front surface of the dielectric board 51 and the fourth coupling body 532 on the back surface of the dielectric board 51.

The projection parts of the first coupling body 521 and the third coupling body 531 and/or the fourth coupling body 532 in the vertical direction (the thickness direction of the dielectric plate 51 of the conducting member 50) are overlapped, and the first coupling body 521 on the front surface of the dielectric plate 51 and the third coupling body 531 and/or the fourth coupling body 532 on the back surface of the dielectric plate 51 can be mutually coupled; the projection parts of the second coupling body 522 and the third coupling body 531 and/or the fourth coupling body 532 in the vertical direction are overlapped, and the second coupling body 522 on the front surface of the dielectric plate 51 and the third coupling body 531 and/or the fourth coupling body 532 on the back surface of the dielectric plate 51 can be coupled with each other.

The first additional conductor 52 is electrically connected to the output end 332 of the first filter 30 through the via 333 of the first filter 30, and the first additional conductor 52 receives the first filtered signal output by the first filter 30; the second additional conductor 53 is electrically connected to the output terminal 432 of the second filter 40 through the via 433 of the second filter 40, and the second additional conductor 53 receives the second filtered signal output by the second filter 40.

Specifically, the via 333 on the first filter 30 corresponds to the first coupling body 521 or the second coupling body 522, so that the first filter 30 outputs the first filtered signal to the first coupling body 521 or the second coupling body 522; the via hole 433 of the second filter 40 corresponds to the third coupler 531 or the fourth coupler 532, so that the second filter 40 outputs the second filtered signal to the third coupler 531 or the fourth coupler 532.

For the purpose of the present disclosure, the first filter 30 is configured to output a first filtered signal to the first coupler 521, and the second filter 40 is configured to output a second filtered signal to the fourth coupler 532.

Therefore, the first coupling body 521 is interdigital coupled to the second coupling body 522, electrically connected to the third coupling body 531 through the via 54, and coupled to the fourth coupling body 532, so that the first filtered signal outputted to the first coupling body 521 can be coupled to the second coupling body 522, the third coupling body 531 and the fourth coupling body 532, respectively.

Moreover, the fourth coupling body 532 is cross-coupled with the third coupling body 531, electrically connected with the second coupling body 522 through the via hole 55, and coupled with the first coupling body 521, so that the second filtering signal outputted to the first coupling body 521 can be coupled to the third coupling body 531, the second coupling body 522, and the first coupling body 521, respectively.

The first filtered signal and the second filtered signal are respectively output or coupled to the first coupler 521, the second coupler 522, the third coupler 531 and the fourth coupler 532, and the first filtered signal and the second filtered signal of the four couplers are uninterruptedly coupled again among the four couplers, so that the first filtered signal and the second filtered signal with different frequency bands are combined.

In another embodiment, referring to fig. 9 and 10, the first attaching conductor 52 includes a fifth coupling body 62, and the fifth coupling body 62 covers the front surface of the dielectric plate 61 of the conducting member 60; the second additional conductor 53 includes a sixth coupling body 63, and the sixth coupling body 63 covers the reverse surface of the dielectric plate 61 of the conducting member 60. The fifth coupling body 62 and the sixth coupling body 63 can be coupled with each other.

The via 333 on the first filter 30 corresponds to the fifth coupling body 62 on the front surface of the dielectric plate 61 of the conducting member 60, so that the first filter 30 outputs the first filtered signal to the fifth coupling body 62; the via 433 of the second filter 40 corresponds to the sixth coupling body 63 on the reverse side of the dielectric plate 61 of the conducting member 60, so that the second filter 40 outputs the second filtered signal to the sixth coupling body 63.

The first filtered signal output by the first filter 30 to the fifth coupling body 62 is coupled to the sixth coupling body 63, and the second filtered signal output by the second filter 40 to the sixth coupling body 63 is coupled to the second coupling body 522, so that the fifth coupling body 62 and the sixth coupling body 63 both have the first filtered signal and the second filtered signal, and the first filtered signal and the second filtered signal are uninterruptedly coupled between the two coupling bodies, so that the first filtered signal and the second filtered signal with different frequency bands are combined.

In order to enhance the efficiency of the mutual coupling between the fifth coupling body 62 and the sixth coupling body 63 of the first filtered signal and the second filtered signal, a via hole for connecting the fifth coupling body 62 and the sixth coupling body 63 may be formed on the dielectric plate 61 of the conducting body 60.

In yet another embodiment, referring to fig. 11 and 12, the via 70 includes a land 71 and a probe 72 standing on a disk surface of the land 71. The land 71 is electrically connected to the output end 332 of the first filter 30, and the first filter 30 outputs the first filtered signal to the land 71; the probe 72 is disposed through the via 333 of the first filter 30 and the via 433 of the second filter 40, but the probe 72 is electrically connected to the output terminal 432 of the second filter 40, but not electrically connected to the output terminal 332 of the first filter 30, and the second filter 40 outputs the second filtered signal to the probe 72.

The first filtering signal output by the first filter 30 to the pad 71 is coupled to the probe 72, and the second filtering signal output by the second filter 40 to the probe 72 is coupled to the pad 71, so that the pad 71 and the probe 72 both have the first and second filtering signals, and the first and second filtering signals are transmitted through the electrical connection between the probe 72 and the pad 71, so that the first and second filtering signals with different frequency bands are mutually blended to realize a combination.

In an exemplary embodiment of the present invention, the filtering combiner structure 10 further includes a shielding assembly, and the shielding assembly further includes two shielding cavities, which are stacked and arranged in parallel in a vertical direction (thickness direction of the filter medium plate), and the two shielding cavities are a first shielding cavity 80 and a second shielding cavity 81, respectively.

The first filter 30 is enclosed within a first shielded cavity 80 and the second filter 40 is enclosed within a second shielded cavity 81. Because the conducting element penetrates through the via hole 333 in the dielectric plate 31 of the first filter 30 and the via hole 433 in the dielectric plate 41 of the second filter 40, a connection port is provided at the intersection of the first shielding cavity 80 and the second shielding cavity 81 for penetrating the conducting element 50, so that the filtering signals respectively output by the first filter 30 and the second filter 40 can be conveniently combined and output.

The shielding assembly further comprises a dielectric material 83, the dielectric material 83 being arranged on both sides of the filter in the shielding cavity. Arranging said dielectric material 83 in the first shielding cavity 80, fixing the dielectric plate 31 of the first filter 30 in the first shielding cavity 80; the dielectric material 83 is disposed in the second shielding cavity 81, and the dielectric plate 41 of the second filter 40 is fixed in the second shielding cavity 81.

In a further embodiment, referring to fig. 13, the multiple sets of filtering combiner structures 10 share the same shielding component. The plurality of first filters 30 are respectively disposed in the first shielding cavities 80 at intervals, the plurality of second filters 40 are disposed in the second shielding cavities 81 at intervals corresponding to the corresponding first filters 30, and connection ports are disposed between the first shielding cavities 80 and the second shielding cavities 81 at corresponding positions and numbers.

In one embodiment, the first conductor, the second conductor, the first additional conductor 52, and the second additional conductor 53 are printed on the respective dielectric boards in the form of microstrip lines or copper materials or silver materials or gold materials.

The present invention further provides a combining phase shifter, which includes two sets of phase shifting circuits and a plurality of filtering combining structures described above, and the filtering combining structures are disposed between output ends of the two sets of phase shifting circuits, as shown in fig. 13. Each set of phase shifting circuits is used for dividing the signal of a single independent frequency band into a plurality of signals with different phases. The two sets of phase shift circuits are respectively a first phase shift circuit 91 and a second phase shift circuit 92.

The first phase shift circuit 91 feeds the first phase-shifted signals to the plurality of first filters 30, respectively, and the first filters 30 filter the first phase-shifted signals to output first filtered signals; the second phase shift circuit 92 feeds the second phase-shifted signals to the plurality of second filters 40, respectively, and the second filters 40 filter the second phase-shifted signals to output second filtered signals. The conducting element 50 of the corresponding filtering and combining structure 10 receives the filtered first filtering signal and the filtered second filtering signal, and combines the first filtering signal and the second filtering signal.

In a preferred embodiment, the first filter 30 filters out the signals in the center frequency band of the second phase-shifted signal of the first phase-shifted signals, and the second filter 40 filters out the signals in the center frequency band of the first phase-shifted signals of the second phase-shifted signals.

In one embodiment, a set of phase shifting circuits corresponding to the same independent frequency band is printed on the same common dielectric plate as the filters. That is, the first phase shift circuit 91 is printed on the same dielectric plate as the first filter 30, and the second phase shift circuit 92 is printed on the same dielectric plate as the second filter 40.

In summary, the conducting body of the present invention is electrically connected to the output ends of the plurality of filters, the plurality of filters filter the signals fed thereto, output the filtered signals obtained by filtering to the conducting body, and combine the plurality of filtered signals through the conducting body.

The foregoing description is only exemplary of the preferred embodiments of the invention and is illustrative of the principles of the technology employed. It will be appreciated by those skilled in the art that the scope of the invention according to the present invention is not limited to the specific combination of the above-mentioned features, but also encompasses other embodiments in which any combination of the above-mentioned features or their equivalents is possible without departing from the scope of the invention as defined by the appended claims. For example, the above features and (but not limited to) features having similar functions of the present invention are mutually replaced to form the technical solution.

Although the subject matter has been described in language specific to structural features and/or methodological acts, it is to be understood that the subject matter defined in the appended claims is not necessarily limited to the specific features or acts described above. Rather, the specific features and acts described above are disclosed as example forms of implementing the claims.

Claims (10)

1. The utility model provides a filtering combiner structure for the output that the turn-on connection corresponds two wave filters printed on respective dielectric plate, its characterized in that: the two dielectric plates are arranged in parallel, the output ends of the two dielectric plates are at least partially overlapped in projection, and the combining structure comprises through holes which are arranged on the two dielectric plates and correspond to the output ends and a conducting piece which penetrates through the two through holes to combine the two output ends.

2. The filtering combining structure of claim 1, wherein: the conducting piece comprises a dielectric plate and a pair of additional conductors which are printed on the dielectric plate and mutually coupled, the pair of additional conductors are respectively a first additional conductor and a second additional conductor, the two filters are respectively a first filter and a second filter, the first additional conductor is electrically connected with the output end of the first filter, and the second additional conductor is electrically connected with the output end of the second filter.

3. The filtering combining structure of claim 2, wherein: the first additional conductor and the second additional conductor are respectively printed on two sides of the dielectric plate of the conducting piece and are arranged in a capacitive coupling mode.

4. The filtering combining structure of claim 2, wherein: the first additional conductor and the second additional conductor of the conducting piece at least present an interdigital coupling structure on the same surface of the dielectric plate so as to realize capacitive coupling arrangement.

5. The filtering combining structure of claim 2, wherein: the first additional conductor and the second additional conductor of the conducting piece are printed on two sides of the dielectric plate, the two additional conductors are conducted through the metalized through holes, and the first additional conductor and the second additional conductor are connected in an interdigital coupling structure in each side of the dielectric plate.

6. The filtering combining structure of claim 2, wherein: the first additional conductor and the second additional conductor each include a plurality of additional conductor strips arranged in parallel with each other, and the additional conductor strip of the first additional conductor and the additional conductor strip of the second additional conductor are arranged so as to overlap at least partially in projection on different surfaces of the dielectric plate.

7. The filtering combining structure of claim 1, wherein: the conducting piece comprises a connecting disc and a probe erected on the disc surface of the connecting disc, the probe penetrates through the through holes in the dielectric plates of the two filters, so that the connecting disc is electrically connected with the output end of one filter, and the probe is electrically connected with the output end of the other filter.

8. The filtering combining structure of any one of claims 1 to 7, wherein: the two filters are respectively packaged in two parallel shielding cavities, and the two shielding cavities are provided with connecting ports for the conducting piece in advance.

9. The utility model provides a combiner phase shifter, its includes two sets of phase shift circuit, and every group phase shift circuit is used for dividing the signal of single independent frequency channel into the multichannel signal that the phase place is different, and two independent frequency channels respectively have one way signal to be switched on respectively to a wave filter that corresponds with it in order to carry out the post-filter output, its characterized in that: the two independent frequency bands are adapted to be arranged between the output ends of the two filters, and the filtering and combining structure of any one of claims 1 to 8 is arranged for combining the signals filtered and outputted by the two filters.

10. The combiner phase shifter of claim 9, wherein: a group of phase shift circuits and filters corresponding to the same independent frequency band are printed on the same shared dielectric plate.

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