CN117937121A - Series-powered polarized reconfigurable antenna - Google Patents

Abstract

The invention discloses a polarized reconfigurable antenna with serial power supply, belonging to the technical field of reconfigurable phased array antennas, which comprises a first body, wherein the first body comprises a first dielectric substrate, a second dielectric substrate and a third dielectric substrate; the top of the first medium substrate is provided with a radiation patch, the second medium substrate is provided with a cross-shaped different-layer coupling gap, and two PIN diodes and capacitors which are connected in parallel are respectively arranged in the different-layer coupling gap; the different-layer coupling gap divides the second substrate into a first quadrant, a second quadrant, a third quadrant and a fourth quadrant, and a through groove is formed in the first quadrant; a feeder line is arranged on the third medium substrate, the feeder line is positioned below the different-layer coupling gap, and the feeder line is connected with a feeder port; the third medium substrate is also provided with a direct current bias line. The invention has simple structure, and the direct current power supply circuit is integrated in the antenna by supplying power to all PIN diodes in a series power supply mode, so that the surface space of the antenna is not occupied.

Description

Series-powered polarized reconfigurable antenna

Technical Field

The invention belongs to the technical field of reconfigurable phased array antennas, and particularly relates to a series-powered polarized reconfigurable antenna.

Background

With the rapid development of wireless microwave technology, wireless devices are developed in the direction of miniaturization and integration, and dual-polarized antenna applications are generated. The dual polarized antenna can generate electromagnetic waves with two different polarizations, and can provide more polarization information for the system. The traditional dual-polarized antenna needs two feed ports for feeding signals, and if the dual-polarized antenna needs to be applied to a phased array antenna system, two sets of hardware equipment such as TR modules, a feed network and the like are needed, so that the cost and the complexity of the whole system are improved. The polarization reconfigurable antenna can adopt a pair of antennas, different antenna polarizations can be obtained by switching the switch state of the antenna or the active radio frequency circuit, and only one set of hardware equipment is needed, so that the cost and the complexity of the system are greatly reduced.

The traditional polarization reconfigurable antenna power supply mode is parallel power supply, the PIN diode inside each polarization reconfigurable antenna needs to be independently powered, the controlled power supply lines are more, the complexity of antenna processing is increased, and particularly the large-scale high-density phased array antenna with a denser channel is hardly realized. In addition, during long-term use and storage of the phased array antenna, the amplitude and the phase in the active channel of the array surface change, so that the amplitude and the phase compensation data stored in the storage unit are not optimal calibration data, the performance of the phased array antenna can be influenced, and the amplitude and the phase of the phased array antenna channel need to be recalibrated periodically. Meanwhile, the currently known polarization reconfigurable antenna does not contain a self-calibration network, an external calibration antenna needs to be introduced for calibration, the overall height of the antenna can be increased, and space loss between the antenna and the calibration antenna needs to be considered. For this purpose, it is necessary to provide a polarization reconfigurable antenna for controlling the switching of diode switches in a dc series power supply mode.

Disclosure of Invention

In order to solve the problem that the power supply mode of the traditional polarized reconfigurable antenna is parallel power supply, diodes in each polarized reconfigurable antenna are required to be independently powered, and the number of power supply lines is controlled, the invention aims to provide the polarized reconfigurable antenna with serial power supply, all diodes are directly powered in a serial power supply mode, and the direct current power supply lines are integrated in the antenna and do not occupy the surface space of the antenna.

In order to achieve the above object, the technical scheme of the present invention is as follows: a series-powered polarized reconfigurable antenna comprises a first body, wherein the first body comprises a first dielectric substrate, a second dielectric substrate and a third dielectric substrate from top to bottom; the second dielectric substrate and the third dielectric substrate are integrally pressed and processed, and the first dielectric substrate is welded on the top of the second dielectric substrate;

The top of the first medium substrate is provided with a radiation patch, the second medium substrate is provided with a cross-shaped different-layer coupling gap, two PIN diodes and capacitors which are connected in parallel are respectively arranged in the different-layer coupling gap, the PIN diodes are positioned at the center of the different-layer coupling groove, and the two PIN diodes and the capacitors are distributed in an array; the different-layer coupling gap divides the second substrate into a first quadrant, a second quadrant, a third quadrant and a fourth quadrant, and a through groove is formed in the first quadrant;

a feeder line is arranged on the third medium substrate, the feeder line is positioned below the different-layer coupling gap, the feeder line is connected with a feeder port, and the feeder port is positioned below the through groove of the first quadrant;

The third medium substrate is also provided with a direct current bias line which is right-angled and is positioned below the first quadrant, the fourth quadrant and the third quadrant, and two ends of the direct current bias line are respectively positioned below the first quadrant and the third quadrant.

The basic scheme is as follows: firstly, installing and setting each component, then, positively charging a fourth quadrant, and grounding a second quadrant, wherein the first quadrant and the third quadrant are connected together through a direct current bias line, a PIN diode positioned in the transverse direction of a coupling gap of an abnormal layer is conducted, a PIN diode positioned in the vertical direction of the coupling gap of the abnormal layer is not conducted, the conducting state of the PIN diode is a resistance characteristic, the resistance value of the PIN diode is small and corresponds to a short circuit state, the non-conducting state of the PIN diode is a small capacitance characteristic and corresponds to an open circuit state, the PIN diode is connected with the PIN diode in the transverse direction of the coupling gap of the abnormal layer, the PIN diode positioned in the vertical direction of the coupling gap of the abnormal layer is in an open circuit state, the PIN diode positioned in the vertical direction of the coupling gap of the abnormal layer radiates signals, and the antenna polarization is horizontal polarization; and similarly, the second quadrant is positively charged, the fourth quadrant is grounded, the first quadrant and the third quadrant are connected together through a direct current bias line, the PIN diode on the vertical direction of the different-layer coupling gap is conducted, the PIN diode on the horizontal direction of the different-layer coupling gap is not conducted, the connection of the PIN diode on the vertical direction of the different-layer coupling gap is equivalent to the connection of the PIN diode on the vertical direction of the different-layer coupling gap, the PIN diode on the horizontal direction of the different-layer coupling gap is in an open state, at the moment, the gap where the PIN diode on the horizontal direction of the different-layer coupling gap is located radiates a signal, and the antenna is polarized vertically, so that the reconstruction of the polarized antenna is realized.

The basic scheme has the beneficial effects that: 1. all PIN diodes are powered in a series power supply mode in a direct current mode, a direct current power supply circuit is integrated in the antenna, the space on the surface of the antenna is not wasted, and no extra space loss exists. Compared with the traditional dual-polarized antenna, half of hardware equipment is saved; furthermore, the serial direct current power supply mode does not occupy the space of the surface of the antenna, and the power supply mode is simple and easy to realize, thereby solving the problem of difficult direct current power supply of the polarized reconfigurable antenna.

2. The signal is fed from one feed port, two kinds of polarization information can be provided in a time-sharing mode, and in a phased array antenna system, a polarization reconfigurable antenna saves half of hardware equipment compared with a traditional dual-polarized antenna.

3. The DC power supply mode of the polarized reconfigurable antenna is serial power supply, and the DC power supply circuit is integrated in the antenna, so that the principle that the ground of the antenna does not transmit radio frequency signals but the ground of the antenna can transmit DC signals is utilized, and the radio frequency ground of the antenna is connected to transmit DC signals. By adding two PIN diodes and capacitors in the transverse direction and the longitudinal direction of the radiation slot layer of the antenna respectively, the PIN diodes show small resistance characteristics when direct current passes through, and are equivalent to short circuit in radio frequency signals; PIN diodes through which the direct current does not pass exhibit a small capacitive characteristic, equivalent to an open circuit in the radio frequency signal.

4. The antenna is polarization reconfigurable, can provide different polarization information in a time sharing way, and has wide application scenes.

Further, one side of the third dielectric substrate, which is close to the feed port, is provided with a self-calibration line, one end of the self-calibration line is electrically connected with a load, the other end of the self-calibration line is electrically connected with a connector, one end, which is far away from the self-calibration line, of the self-calibration line is positioned at the feed line end, and one end, which is far away from the self-calibration line, of the self-calibration line can be coupled with energy at the feed line and is transmitted to the self-calibration line.

The basic scheme has the beneficial effects that: the energy of a part of feeder lines can be coupled to the self-calibration line in a non-contact manner through the coupling line, so that the self-calibration of the device can be realized. The self-calibration function of the antenna is integrated in the polarized reconfigurable antenna, so that the phase and amplitude of the later-stage antenna are conveniently calibrated, all devices are integrated in the antenna, the section of the phased array system is effectively reduced, and the extra space loss is reduced; and simultaneously, compared with an external calibration system of the antenna, the whole section of the antenna system is reduced.

Further, the bottom of the first dielectric substrate is provided with a containing groove, and the containing groove is positioned above the PIN diode, the capacitor and the through groove on the second dielectric substrate.

The basic scheme has the beneficial effects that: one function is to widen the bandwidth of the antenna, the other function is to provide mounting positions for the PIN diode and the capacitor at the position of the accommodating groove, and the devices are arranged in the antenna to avoid the PIN diode and the capacitor from being exposed to air; and the first dielectric substrate and the second dielectric substrate are sealed and welded, so that a closed environment can be provided for the devices, and the reliability of the antenna is improved in the long-term use process.

Further, the different layer coupling slit is provided with a plurality of connecting holes along the side edge thereof.

The basic scheme has the beneficial effects that: adding a proper amount of metallized vias can improve the matching of the antenna and increase the operating bandwidth.

Further, the phased array further comprises a plurality of second bodies which are the same as the first body in structure, the second bodies are arranged on one side of the first bodies in a mirror image mode, and the first bodies and the second bodies form a phased array integrally; the first body and the second body are connected by self-calibration lines.

The basic scheme has the beneficial effects that: the self-calibration lines of the first body and the second body are mutually close and connected, so that the coupled self-calibration lines can be gathered at the self-calibration lines, and corresponding efficient self-calibration operation can be performed.

Further, the first body and the second body are connected in series through a direct current bias line arranged on the different-layer coupling gap, one end of the direct current bias line is connected in series with the second quadrant of the first body, and the other end of the direct current bias line is connected in series with the fourth quadrant of the second body.

The basic scheme has the beneficial effects that: the fourth quadrant of the first body is positively charged, the second quadrant of the second body is grounded, the first quadrant and the third quadrant of the first body and the second body are connected together through direct current bias lines, at the moment, the polarization of the antenna on the first body and the second body is horizontal polarization, the second quadrant of the second body is positively charged, the fourth quadrant of the first body is grounded, and the polarization of the antenna on the first body and the second body can be vertical polarization.

Further, the feed port is provided with a welding hole along the circumferential direction thereof, and the welding hole is positioned below the through groove.

The basic scheme has the beneficial effects that: the design of the welding hole is convenient for the integral installation and the arrangement of the device, and a certain space is reserved for the feed port.

Drawings

Fig. 1 is a side cross-sectional view of a series-fed polarized reconfigurable antenna in an embodiment of the invention.

Fig. 2 is a top view of a second dielectric substrate in a series-powered polarized reconfigurable antenna in accordance with an embodiment of the present invention.

Fig. 3 is a top view of a third dielectric substrate in a series-powered polarized reconfigurable antenna in accordance with an embodiment of the invention.

Fig. 4 is a phased array schematic of a series-fed polarized reconfigurable antenna in an embodiment of the invention.

Fig. 5 is a schematic diagram of horizontal polarization energization of serially-powered polarized reconfigurable antennas in an embodiment of the present invention.

Fig. 6 is a schematic diagram of a horizontal polarization powered state of a serially powered polarized reconfigurable antenna according to an embodiment of the present invention.

Fig. 7 is a schematic diagram of vertical polarization energization of serially-powered polarized reconfigurable antennas in an embodiment of the present invention.

Fig. 8 is a schematic diagram of a vertical polarization powered state of a serially powered polarized reconfigurable antenna in an embodiment of the invention.

Fig. 9 is a schematic diagram of a third dielectric substrate phased array in a series-powered polarized reconfigurable antenna in an embodiment of the invention.

Fig. 10 is a schematic diagram of phased array horizontal polarization energization in a series-fed polarization reconfigurable antenna in an embodiment of the present invention.

Fig. 11 is a schematic diagram of a phased array horizontal polarization power-up state in a series-powered polarization reconfigurable antenna in an embodiment of the invention.

Fig. 12 is a schematic diagram of phased array vertical polarization energization in a series-fed polarization reconfigurable antenna in an embodiment of the present invention.

Fig. 13 is a schematic diagram of a phased array vertical polarization power-up state in a series-powered polarization reconfigurable antenna in an embodiment of the invention.

Fig. 14 is a schematic diagram of a one-dimensional antenna array in experiment one.

Fig. 15 is a schematic diagram of a 1x2 array dc series powered horizontal polarization power-up mode in experiment one.

FIG. 16 is a schematic diagram of a 1x2 array DC series powered vertical polarization power up mode in experiment one.

Fig. 17 is a schematic diagram of a one-dimensional antenna array in experiment two.

Fig. 18 is a schematic diagram of a 1x2 array dc series powered horizontal polarization power-up mode in experiment two.

Fig. 19 is a schematic diagram of a 1x2 array dc series powered vertical polarization power-up mode in experiment two.

Fig. 20 is a schematic diagram of a one-dimensional antenna array in experiment three.

Fig. 21 is a schematic diagram of a 2x1 array dc series powered horizontal polarization power-up mode in experiment three.

Fig. 22 is a schematic diagram of a 2x1 array dc series powered vertical polarization power up mode in experiment three.

Fig. 23 is a schematic diagram of a two-dimensional antenna array in experiment four.

Fig. 24 is a schematic diagram of a 2x2 array dc series powered horizontal polarization power up mode in experiment four.

Fig. 25 is a schematic diagram of a 2x2 array dc series powered vertical polarization power up mode in experiment four.

Fig. 26 is a schematic diagram of a two-dimensional antenna array in experiment five.

Fig. 27 is a schematic diagram of a 2x2 array dc series powered horizontal polarization power up mode in experiment five.

Fig. 28 is a schematic diagram of a 2x2 array dc series powered vertical polarization power up mode in experiment five.

Fig. 29 is a schematic diagram of a 2x20 antenna array in experiment six.

Fig. 30 is a schematic diagram of a 2x20 array dc series powered horizontal polarization power up mode in experiment six.

Fig. 31 is a schematic diagram of a 2x20 array dc series powered vertical polarization power up mode in experiment six.

Detailed Description

The following is a further detailed description of the embodiments:

Reference numerals in the drawings of the specification include: the device comprises a first dielectric substrate 1, a second dielectric substrate 2, a third dielectric substrate 3, a radiation patch 4, a different layer coupling gap 5, a feeder line 6, a self-alignment line 7, a feeder port 8, a direct current bias line 9, a first quadrant 10, a second quadrant 11, a fourth quadrant 12, a third quadrant 13, a capacitor 14, a PIN diode 15, a coupling line 16, a containing groove 17, a through groove 18 and a welding hole 19.

Example 1

Substantially as shown in figure 1: the polarized reconfigurable antenna powered in series comprises a first body, wherein the first body comprises a first dielectric substrate 1, a second dielectric substrate 2 and a third dielectric substrate 3 from top to bottom; the second dielectric substrate 2 and the third dielectric substrate 3 are integrally pressed and processed, and the first dielectric substrate 1 is welded on the top of the second dielectric substrate 2;

the top of the first medium substrate 1 is provided with a radiation patch 4, the second medium substrate 2 is provided with a cross-shaped different-layer coupling gap 5, two PIN diodes 15 and capacitors 14 which are connected in parallel are respectively arranged in the different-layer coupling gap 5, the PIN diodes 15 are close to the center of the different-layer coupling groove, and the two PIN diodes 15 and the capacitors 14 are distributed in an array; the different-layer coupling gap 5 divides the second substrate into a first quadrant 10, a second quadrant 11, a third quadrant 13 and a fourth quadrant 12, and a through groove 18 is arranged in the first quadrant 10;

A feeder line 6 is arranged on the third dielectric substrate 3, the feeder line 6 is positioned below the different-layer coupling gap 5, the feeder line 6 is connected with a feeder port 8, the feeder port 8 is provided with a welding hole 19 along the circumferential direction of the feeder port 8, and the welding hole 19 is positioned below the through groove 18;

The third dielectric substrate 3 is further provided with a direct current bias line 9 which is perpendicular to and is positioned below the first quadrant 10, the fourth quadrant 12 and the third quadrant 13, and two ends of the direct current bias line 9 are respectively positioned below the first quadrant 10 and the third quadrant 13.

The specific implementation process is as follows: in operation, firstly, each component is installed and set, as shown in fig. 5 and 6, the fourth quadrant 12 is positively charged, the second quadrant 11 is grounded, the first quadrant 10 and the third quadrant 13 are connected together through a direct current bias line 9, at this time, the PIN diode 15 located in the transverse direction of the split-layer coupling slot 5 is conducted, the PIN diode 15 located in the vertical direction of the split-layer coupling slot 5 is not conducted, wherein the PIN diode 15 has a conducting state resistance characteristic, the resistance value of the PIN diode 15 is very small and corresponds to a short circuit state, the non-conducting state of the PIN diode 15 is a small capacitor 14 characteristic and corresponds to an open circuit state, the PIN diode 15 equivalent to the transverse direction of the split-layer coupling slot 5 is connected, the PIN diode 15 located in the vertical direction of the split-layer coupling slot 5 is in an open circuit state, at this time, the PIN diode 15 located in the vertical direction of the split-layer coupling slot 5 radiates a signal, and the antenna polarization is horizontal;

As shown in fig. 7 and 8, the second quadrant 11 is positively charged, the fourth quadrant 12 is grounded, the first quadrant 10 and the third quadrant 13 are connected together through the dc bias line 9, the PIN diode 15 in the vertical direction of the hetero-layer coupling slot 5 is turned on, the PIN diode 15 in the horizontal direction of the hetero-layer coupling slot 5 is not turned on, which is equivalent to the connection of the PIN diode 15 in the vertical box of the hetero-layer coupling slot 5, the PIN diode 15 in the horizontal direction of the hetero-layer coupling slot 5 is in an open state, at this time, the slot where the PIN diode 15 in the horizontal direction of the hetero-layer coupling slot 5 is located radiates a signal, and the antenna polarization is vertical polarization, thereby realizing the reconstruction of the polarized antenna.

The direct current series power supply mode of the polarized reconfigurable antenna is used for supplying direct current to all PIN diodes 15 in a series power supply mode, and a direct current power supply circuit is integrated in the antenna, so that the surface space of the antenna is not occupied, and only one direct current power supply interface is needed; and the polarization reconfigurable antenna is fed with signals from one feed port, so that two types of polarization information can be provided in a time-sharing mode, and in a phased array antenna system, half hardware equipment is saved compared with a traditional dual-polarized antenna.

Example 2

The difference from the above embodiment is that the side of the third dielectric substrate 3 near the feed port 8 is provided with a self-calibration line 7, one end of the self-calibration line 7 is electrically connected with a load, the other end of the self-calibration line 7 is electrically connected with a connector, the self-calibration line 7 is electrically connected with a coupling line 16, one end of the coupling line 16 far away from the self-calibration line 7 is close to the feed line 6, and one end of the coupling line 16 near the feed line 6 can couple energy at the feed line 6 and transmit the energy to the self-calibration line 7.

The specific implementation process is as follows: when calibration is carried out, the energy of a part of feeder lines 6 can be coupled to the self-calibration line 7 in a non-contact manner through the coupling line 16, so that the self-calibration of the device can be realized; meanwhile, the self-calibration function of the antenna is integrated in the polarization reconfigurable antenna, so that the amplitude and the phase of the antenna can be conveniently calibrated in the later period.

Example 3

Unlike the above embodiment, as shown in fig. 4, the bottom of the first dielectric substrate 1 is provided with a receiving groove 17, and the receiving groove 17 is located above the PIN diode 15, the capacitor 14 and the through groove 18 on the second dielectric substrate 2.

The specific implementation process is as follows: through the design of the accommodating groove 17, one function is to widen the bandwidth of the antenna, and the other function is to provide mounting positions for the PIN diode 15 and the capacitor 14 at the position of the accommodating groove 17, and enable the devices to be mounted in the antenna so as to prevent the PIN diode 15 and the capacitor 14 from being exposed to air; and the first dielectric substrate 1 and the second dielectric substrate 2 are sealed and welded together, so that a closed environment can be provided for the devices, and the reliability of the antenna is improved in the long-term use process.

Example 4

The difference from the above-described embodiment is that the coupling slit 5 of different layers is provided with several connecting holes along its edges.

The specific implementation process is as follows: the matching of the antenna can be improved by adding a proper amount of metallized through holes, and the working bandwidth is increased.

Example 5

The difference from the above embodiment is that, as shown in fig. 4, the phased array further includes a plurality of second bodies having the same structure as the first body, the second bodies are mirror-image arranged on one side of the first body, and the first bodies and the second bodies form the phased array;

As shown in fig. 9, the self-alignment lines 7 of the first body and the second body are close to each other and connected, the first body and the second body are connected in series by a dc bias line 9 disposed on the hetero-layer coupling slot 5 at the second dielectric substrate 2, one end of the dc bias line 9 is connected in series with the second quadrant 11 of the first body, and the other end of the dc bias line 9 is connected in series with the fourth quadrant 12 of the second body.

The specific implementation process is as follows: the self-calibration lines 7 of the first body and the second body are mutually close and connected, so that the self-calibration lines 7 can be gathered by coupling the coupling lines 16, and corresponding efficient self-calibration operation can be performed;

Meanwhile, when power is supplied, as shown in fig. 10 and 11, the fourth quadrant 12 of the first body is positively charged, the second quadrant 11 of the second body is grounded, wherein the first quadrant 10 and the third quadrant 13 on the first body and the second body are connected together through the direct current bias line 9, at this time, the polarization of the antenna on the first body and the second body is horizontal polarization, as shown in fig. 12 and 13, the second quadrant 11 of the second body is positively charged, and the fourth quadrant 12 of the first body is grounded, so that the polarization of the antenna on the first body and the second body is vertical polarization.

The specific experimental process is as follows:

Experiment one:

As shown in fig. 14, when applied to a one-dimensional phased array antenna, two polarization reconfigurable antennas are placed in parallel, self-calibration signal lines of the antennas are connected together, one end of the self-calibration signal lines is connected with a load, the other end of the self-calibration signal lines is connected with a radio frequency connector, the coupling slots of the same unit are connected with the upper and lower positions through a different layer of direct current bias line 9, and the coupling slot layers of the two units are connected with the opposite angle positions in series through the same layer of direct current bias line 9. The direction of the PIN diode 15 and the dc power supply mode are shown in fig. 15, in which the PIN diodes 15 are B1, B2, B3 and B4 respectively, the PIN diodes B1 and B2 are turned on, the PIN diodes B3 and B4 are not turned on, and the antenna is in horizontal polarization; the PIN diode 15 is turned on by the PIN diodes B3 and B4, and the PIN diodes B1 and B2 are turned off by the PIN diodes B1 and B2, and the antenna is polarized vertically, as shown in fig. 16. The method is equally applicable to one-dimensional arrays of n (n=2, 3,4 …) polarization reconfigurable antennas.

Experiment II:

As shown in fig. 17, when applied to a one-dimensional phased array antenna, two polarization reconfigurable antennas are placed in parallel, self-calibration signal lines of the antennas are connected together, one end of the self-calibration signal lines is connected with a load, the other end of the self-calibration signal lines is connected with a radio frequency connector, the coupling slots of the same unit are connected with the upper and lower positions through a different-layer direct-current bias line 9, the coupling slot layers of the two units are connected with the opposite-angle positions in series through the same-layer direct-current bias line 9, and direct-current power is supplied by a low-frequency connector through a wire penetrating layer. The direction of the PIN diode 15 and the dc power supply mode are shown in fig. 18, in which the PIN diodes 15 are B1, B2, B3 and B4 respectively, the PIN diodes B1 and B2 are turned on, the PIN diodes B3 and B4 are not turned on, and the antenna is in horizontal polarization; the PIN diode 15 is turned on by the PIN diodes B3 and B4, and the PIN diodes B1 and B2 are turned off by the PIN diodes B1 and B2, and the antenna is polarized vertically, as shown in fig. 19. The method is equally applicable to one-dimensional arrays of n (n=2, 3,4 …) polarization reconfigurable antennas.

Experiment III:

As shown in fig. 20, when the one-dimensional common self-calibration phased array antenna is used, two polarized reconfigurable antennas are placed in mirror symmetry through a self-calibration line 7, self-calibration signal lines of the common antennas are used, one end of each self-calibration signal line is connected with a load, the other end of each self-calibration signal line is connected with a connector in a radio frequency mode, the coupling slots of the same unit are connected with the upper position and the lower position through a direct current bias line 9 of a different layer, and the coupling slot layers of the two units are connected with two direct currents through a direct current bias line 9 of the same layer. The direction of the PIN diode 15 and the dc power supply mode are shown in fig. 21, in which the PIN diodes 15 are B1, B2, B3 and B4 respectively, the PIN diodes B1 and B2 are turned on, the PIN diodes B3 and B4 are not turned on, and the antenna is in horizontal polarization; the PIN diode 15 is turned on by the PIN diodes B3 and B4, and the PIN diodes B1 and B2 are turned off by the PIN diodes B1 and B2, and the antenna is polarized vertically, as shown in fig. 22.

Experiment IV:

As shown in fig. 23, when the two-dimensional common self-calibration phased array antenna is used, the upper and lower polarized reconfigurable antennas are placed in mirror symmetry through the self-calibration line 7, the self-calibration signal line of the antenna is shared, one end of the self-calibration signal line is connected with a load, the other end of the self-calibration signal line is connected with a connector, the upper and lower positions of the coupling slots of the same unit are connected through a direct current bias line 9 of a different layer, the diagonal positions of the coupling slot layers of the left and right units are connected in series through a direct current bias line 9 of the same layer, and the two direct currents of the coupling slot layers of the upper and lower units are connected through a direct current bias line 9 of the same layer. The direction of the PIN diode 15 and the dc power supply mode are shown in fig. 24, in the drawing, the PIN diodes 15 are B1, B2, B3 and B4 respectively, at this time, the PIN diodes B1 and B2 are turned on, the PIN diodes B3 and B4 are not turned on, at this time, the antenna is in horizontal polarization; the PIN diode 15 is turned on by the PIN diodes B3 and B4, and the PIN diodes B1 and B2 are turned off by the PIN diodes B1 and B2, and the antenna is polarized vertically, as shown in fig. 25. The method is equally applicable to two-dimensional arrays of n (n=2, 3,4 …) polarized reconfigurable antennas in the number of horizontal antennas.

Experiment five:

As shown in fig. 26, when the two-dimensional common self-calibration phased array antenna is used, the upper and lower polarized reconfigurable antennas are placed in mirror symmetry through the self-calibration line 7, the self-calibration signal line of the common antenna is connected with the load at one end and the connector at the other end, the coupling gap of the same unit is connected with the upper and lower positions through a direct current bias line 9 of a different layer, the coupling gap layers of the left and right units are connected with the diagonal positions in series through a direct current bias line 9 of the same layer, and the coupling gap layers of the upper and lower units are connected with the two direct currents through a direct current bias line 9 of the same layer. Through the wire penetrating layer, the direct current is supplied with power by a low-frequency connector. The direction of the PIN diode 15 and the dc power supply mode are shown in fig. 27, in which the PIN diodes 15 are B1, B2, B3 and B4 respectively, the PIN diodes B1 and B2 are turned on, the PIN diodes B3 and B4 are not turned on, and the antenna is in horizontal polarization; the PIN diode 15 is turned on by the PIN diodes B3 and B4, and the PIN diodes B1 and B2 are turned off by the PIN diodes B3 and B2, as shown in fig. 28, and the antenna is polarized vertically. The method is equally applicable to the third experiment.

Experiment six:

As shown in fig. 29, in a specific scenario, for example, a two-dimensional common self-calibration phased array antenna applied to 2X20 array elements is optionally used, the polarized reconfigurable antennas of the upper and lower antennas are placed in mirror symmetry through the self-calibration line 7, the self-calibration signal lines of the antennas are shared, one end of each self-calibration signal line is connected with a load, the other end of each self-calibration signal line is connected with a connector, the coupling slots of the same unit are connected with the upper and lower positions through a direct current bias line 9 of a different layer, the coupling slot layers of the left and right adjacent units are connected with the diagonal positions in series through a direct current bias line 9 of the same layer, and the coupling slot layers of the upper and lower units are connected with two blocks of direct current through a direct current bias line 9 of the same layer. Through wire layering, direct current is supplied with power by a low frequency connector, power supply of 40 array elements can be solved through the low frequency connector, and self calibration of 40 array elements can be completed through a self calibration wire 7. The direction of the PIN diode 15 and the dc power supply mode are shown in fig. 30, in which the PIN diodes 15 are B1, B2, B3 and B4 respectively, the PIN diodes B1 and B2 are turned on, the PIN diodes B3 and B4 are not turned on, and the antenna is in horizontal polarization; the PIN diode 15 is turned on by the PIN diodes B3 and B4, and the PIN diodes B1 and B2 are turned off by the PIN diodes B1 and B2, and the antenna is polarized vertically, as shown in fig. 31. Example 6 this method is described on the basis of example 5, and the scope of the method is not limited, but the same method can be used as in experiment two.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

The foregoing is merely an embodiment of the present application, and a specific structure and characteristics of common knowledge in the art, which are well known in the scheme, are not described herein, so that a person of ordinary skill in the art knows all the prior art in the application date or before the priority date, can know all the prior art in the field, and has the capability of applying the conventional experimental means before the date, and a person of ordinary skill in the art can complete and implement the present embodiment in combination with his own capability in the light of the present application, and some typical known structures or known methods should not be an obstacle for a person of ordinary skill in the art to implement the present application. It should be noted that modifications and improvements can be made by those skilled in the art without departing from the structure of the present application, and these should also be considered as the scope of the present application, which does not affect the effect of the implementation of the present application and the utility of the patent. The protection scope of the present application is subject to the content of the claims, and the description of the specific embodiments and the like in the specification can be used for explaining the content of the claims.

Claims (7)

1. A series-powered polarized reconfigurable antenna characterized by: the device comprises a first body, wherein the first body comprises a first dielectric substrate, a second dielectric substrate and a third dielectric substrate from top to bottom; the second dielectric substrate and the third dielectric substrate are integrally pressed and processed, and the first dielectric substrate is welded on the top of the second dielectric substrate;

The top of the first medium substrate is provided with a radiation patch, the second medium substrate is provided with a cross-shaped different-layer coupling gap, two PIN diodes and capacitors which are connected in parallel are respectively arranged in the different-layer coupling gap, the PIN diodes are positioned at the center of the different-layer coupling groove, and the two PIN diodes and the capacitors are distributed in an array; the different-layer coupling gap divides the second substrate into a first quadrant, a second quadrant, a third quadrant and a fourth quadrant, and a through groove is formed in the first quadrant;

a feeder line is arranged on the third medium substrate, the feeder line is positioned below the different-layer coupling gap, the feeder line is connected with a feeder port, and the feeder port is positioned below the through groove of the first quadrant;

The third medium substrate is also provided with a direct current bias line which is right-angled and is positioned below the first quadrant, the fourth quadrant and the third quadrant, and two ends of the direct current bias line are respectively positioned below the first quadrant and the third quadrant.

2. The series-powered polarized reconfigurable antenna of claim 1, wherein: one side of the third dielectric substrate, which is close to the feed port, is provided with a self-calibration line, one end of the self-calibration line is electrically connected with a load, the other end of the self-calibration line is electrically connected with a connector, one end, which is far away from the self-calibration line, of the coupling line is positioned at the feed line end, and one end, which is far away from the self-calibration line, of the coupling line can be coupled with energy at the feed line and is transmitted to the self-calibration line.

3. The series-powered polarized reconfigurable antenna of claim 2, wherein: the bottom of the first medium substrate is provided with a containing groove, and the containing groove is positioned above the PIN diode, the capacitor and the through groove on the second medium substrate.

4. A series-powered polarized reconfigurable antenna according to claim 3, wherein: the different layer coupling gap is provided with a plurality of connecting holes along the side edge.

5. The series-powered polarized reconfigurable antenna of claim 4, wherein: the system also comprises a plurality of second bodies which have the same structure as the first body, wherein the second bodies are arranged at one side of the first body in a mirror image mode, and the first bodies and the second bodies form a phased array integrally; the first body and the second body are connected by self-calibration lines.

6. The series-powered polarized reconfigurable antenna of claim 5, wherein: the first body and the second body are connected in series through a direct current bias line arranged on the different-layer coupling gap, one end of the direct current bias line is connected in series with the second quadrant of the first body, and the other end of the direct current bias line is connected in series with the fourth quadrant of the second body.

7. The series-powered polarized reconfigurable antenna of claim 6, wherein: the feed port is provided with a welding hole along the circumferential direction of the feed port, and the welding hole is positioned below the through groove.