CN114725695A - Novel ultra-thin all-metal dual-frequency transmission and reflection integrated array antenna unit - Google Patents
Novel ultra-thin all-metal dual-frequency transmission and reflection integrated array antenna unit Download PDFInfo
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- CN114725695A CN114725695A CN202210364914.0A CN202210364914A CN114725695A CN 114725695 A CN114725695 A CN 114725695A CN 202210364914 A CN202210364914 A CN 202210364914A CN 114725695 A CN114725695 A CN 114725695A
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 84
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 70
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- 230000010287 polarization Effects 0.000 claims description 4
- 229910000838 Al alloy Inorganic materials 0.000 claims description 3
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- 238000005530 etching Methods 0.000 abstract description 3
- 230000005855 radiation Effects 0.000 description 9
- 238000004891 communication Methods 0.000 description 5
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- 230000002457 bidirectional effect Effects 0.000 description 4
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- 238000012986 modification Methods 0.000 description 2
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- 230000001902 propagating effect Effects 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
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- 238000001514 detection method Methods 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
- H01Q21/061—Two dimensional planar arrays
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/002—Protection against seismic waves, thermal radiation or other disturbances, e.g. nuclear explosion; Arrangements for improving the power handling capability of an antenna
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
- H01Q15/02—Refracting or diffracting devices, e.g. lens, prism
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
- H01Q15/14—Reflecting surfaces; Equivalent structures
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
- H01Q15/24—Polarising devices; Polarisation filters
- H01Q15/242—Polarisation converters
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
- H01Q19/06—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using refracting or diffracting devices, e.g. lens
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
- H01Q19/10—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
- H01Q3/26—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture
- H01Q3/28—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture varying the amplitude
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
- H01Q3/26—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture
- H01Q3/30—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture varying the relative phase between the radiating elements of an array
- H01Q3/34—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture varying the relative phase between the radiating elements of an array by electrical means
Abstract
The invention discloses a novel ultrathin all-metal dual-frequency transmission and reflection integrated array antenna unit, which is obtained by etching a first open circular groove (11), four loading type triangular grooves (12), (13), (14) and (15) and a second open circular groove (16) on a first square metal plate (1). Wherein, the four loading type triangular grooves and the second opening circular ring groove jointly form an asymmetric groove structure along the x axis and the y axis. The central frequency points of the two frequency bands of the unit are 10GHz and 22GHz respectively. The opening angle is changed by rotating the first opening circular ring groove (11) in a low-frequency state, the sizes of the four loading type triangular grooves are changed in a high-frequency state, the second opening circular ring groove (16) is turned in a mirror image mode, the reflection and transmission phases of the unit can be continuously changed at 0-360 degrees, and the linear value of the amplitude is close to the maximum value of 0.5. The units form a two-dimensional ultrathin all-metal planar array antenna at equal intervals, and focused beams can be simultaneously radiated along the + z axis and the-z axis under two frequency bands.
Description
Technical Field
The invention belongs to the field of antennas, and particularly relates to a novel ultrathin all-metal dual-frequency transmission and reflection integrated array antenna unit.
Background
With the continuous development of modern wireless communication systems, antennas are used as an indispensable loop of the transceiving end of the communication system, and antenna patterns and antenna gains are always important performance indexes. Transmissive array antennas and reflective array antennas are a new generation of high gain antennas that combine the advantages of parabolic antennas and microstrip array antennas. The transmission and reflection array antenna has wide prospect in the fields of remote detection, satellite communication and the like by virtue of the advantages of high gain, low profile, high radiation efficiency, lightness, easiness in processing and the like. However, in some wireless communication scenarios, it is desirable that the antenna has high gain and bidirectional radiation pattern characteristics, such as a tunnel communication system, a radio frequency identification system, and an interferometric aperture synthetic radar system. The traditional reflect array antenna can only realize unidirectional high-gain beam radiation, so the traditional solution is to use two antenna aperture surfaces to carry out back-to-back assembly to obtain bidirectional high-gain beam radiation. For large aperture array antennas, this conventional approach undoubtedly increases the design and manufacturing costs of the antenna. Based on this, the transmission and reflection integrated array antenna is used for realizing the bidirectional high-gain beam radiation, so that the processing cost of the antenna can be reduced, and the aperture utilization rate of the antenna can be greatly improved.
However, currently, research on the transmission and reflection integrated array antenna is very limited, most of the transmission and reflection integrated array antenna units are designed in a single frequency band by adopting a multilayer dielectric substrate, unit loss is serious, the structure is relatively complex, and stability is poor in some extreme environments.
Therefore, in order to further reduce the unit loss and the structural complexity of the transmission and reflection integrated array antenna and improve the face reuse rate of the transmission and reflection integrated array antenna under different frequency bands, the invention provides a novel ultrathin all-metal dual-frequency transmission and reflection integrated array antenna unit. The novel ultrathin all-metal dual-frequency transmission and reflection integrated array antenna unit provided by the invention can realize bidirectional high-gain beam radiation at two different working frequency points only by etching an asymmetric groove-shaped structure on an ultrathin square metal sheet. The transmission and reflection integrated array antenna based on the unit can greatly reduce loss and manufacturing cost, and the whole structure of the array is more compact and portable.
Disclosure of Invention
The invention aims to provide a novel ultrathin all-metal dual-frequency transmission and reflection integrated array antenna unit.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
a novel ultrathin all-metal dual-frequency transmission and reflection integrated array antenna unit only comprises a first square metal plate (1) from top to bottom; the antenna unit is a plane structure and is horizontally arranged along xoy;
furthermore, a first open circular groove (11), a first loading triangular groove (12), a second loading triangular groove (13), a third loading triangular groove (14), a fourth loading triangular groove (15) and a second open circular groove (16) are etched on a first square metal plate (1) of the novel ultrathin all-metal dual-frequency transmission and reflection integrated array antenna unit;
further, the first loading type triangular groove (12), the second loading type triangular groove (13), the third loading type triangular groove (14) and the fourth loading type triangular groove (15) are consistent in size and symmetrically distributed along the x axis and the y axis; the opening of the second opening circular ring groove (16) is fixedly positioned at the left lower corner of the unit, and the second opening circular ring groove (16) and the four loading type triangular grooves form an asymmetric groove structure along the x axis and the y axis together;
furthermore, the first square metal plate (1) of the novel ultrathin all-metal dual-frequency transmission and reflection integrated array antenna unit is made of stainless steel, aluminum alloy or other metal with good electric conductivity;
furthermore, the central frequency points of the two frequency bands of the novel ultrathin all-metal dual-frequency transmission and reflection integrated array antenna unit are respectively 10GHz and 22GHz, and the polarization characteristics of the two frequency bands are different;
further, when the novel ultrathin all-metal dual-frequency transmission and reflection integrated array antenna unit works at a low frequency, and when the incident wave is a left-handed circularly polarized wave (right-handed circularly polarized wave), the transmitted wave is a right-handed circularly polarized wave (left-handed circularly polarized wave), and the reflected wave is a left-handed circularly polarized wave (right-handed circularly polarized wave);
further, when the novel ultrathin all-metal dual-frequency transmission and reflection integrated array antenna unit works at high frequency and incident waves are x-polarized waves (y-polarized waves), both transmitted waves and reflected waves are y-polarized waves (x-polarized waves);
furthermore, the novel ultrathin all-metal dual-frequency transmission and reflection integrated array antenna unit changes the opening angle by rotating the first opening circular groove (11), the reflection and transmission phase and amplitude are regulated and controlled under low frequency, and the reflection and transmission phase of the unit is always the same; the opening angle of the first opening circular ring groove (11) is rotated by 180 degrees from 0 degree, the reflection and transmission phase energy under low frequency is continuously changed at 0-360 degrees, and the linear values of the reflection and transmission amplitudes are close to the maximum value of 0.5.
Further, the novel ultrathin all-metal dual-frequency transmission and reflection integrated array antenna unit regulates and controls reflection and transmission phases and amplitudes at high frequency by changing the sizes of the four loading type triangular grooves (12), (13), (14) and (15); the reflection and transmission phases of the unit are changed from 0 degree to 180 degrees and are always the same; after the second open circular groove (16) is turned over along the x-axis in a mirror image mode, the sizes of the four loading triangular grooves (12), (13), (14) and (15) are changed, and 180-360-degree phase change can be achieved; therefore, under high frequency, the novel ultrathin all-metal dual-frequency transmission and reflection integrated array antenna unit can continuously change the reflection and transmission phase at 0-360 degrees through mirror image overturning and size change, and the linear values of the reflection and transmission amplitudes are close to the maximum value of 0.5;
further, the novel ultrathin all-metal dual-frequency transmission and reflection integrated array antenna unit is used for forming a two-dimensional ultrathin all-metal planar array antenna at equal intervals; the planar array antenna can simultaneously radiate focused beams along a + z axis and a-z axis under two frequency bands respectively;
compared with the prior art, the invention has the following advantages:
1. the novel ultrathin all-metal dual-frequency transmission and reflection integrated array antenna unit has an ultrathin plane all-metal structure, and the whole structure is more compact and portable;
2. the novel ultrathin all-metal dual-frequency transmission and reflection integrated array antenna unit can be processed and manufactured only by etching a groove-shaped structure on a metal plate, so that the manufacturing cost of the unit is lower;
3. the novel ultrathin all-metal dual-frequency transmission and reflection integrated array antenna unit can work under two different frequency bands, so that the face reuse rate of the array is further improved;
4. the novel ultrathin all-metal dual-frequency transmission and reflection integrated array antenna unit has the polarization-variable characteristic under two frequency bands, can realize polarization-variable reflection and transmission under the condition of not loading a polarizer, and realizes polarization isolation between incident waves and reflected and transmitted waves;
5. the linear values of the unit transmission and reflection amplitudes of the novel ultrathin all-metal dual-frequency transmission and reflection integrated array antenna unit under two frequency points are close to the maximum value of 0.5, and the unit loss is extremely low.
Drawings
For a better understanding of the objects, aspects and advantages of the present invention, reference will now be made to the following detailed description taken in conjunction with the accompanying drawings in which:
1-a first square metal plate, 11-a first open circular groove, 12-a first loading triangular groove, 13-a second loading triangular groove, 14-a third loading triangular groove, 15-a fourth loading triangular groove, 16-a second open circular groove.
FIG. 1 is a top view of the novel ultra-thin all-metal dual-band transreflective integrated array antenna element structure of the present invention;
FIG. 2 is a side view of the novel ultra-thin all-metal dual band transmissive and reflective integrated array antenna element of the present invention;
FIG. 3 shows the reflection coefficient S of the novel ultra-thin all-metal dual-band transmission and reflection integrated array antenna unit of the present invention when the antenna unit works at low frequency and the incident wave is left-handed circularly polarized wave11A polar coordinate graph of (a);
FIG. 4 shows the transmission coefficient S of the novel ultra-thin full-metal dual-frequency transmission and reflection integrated array antenna unit of the present invention when the antenna unit works at low frequency and the incident wave is left-handed circular polarized wave21A polar coordinate graph of (a);
FIG. 5 shows the reflection coefficient S of the novel ultra-thin all-metal dual-frequency transmission and reflection integrated array antenna unit of the present invention when operating at high frequency and the incident wave is x-polarized wave11A polar coordinate graph of (a);
FIG. 6 shows the transmission coefficient S of the novel ultra-thin all-metal dual-frequency transmission and reflection integrated array antenna unit of the present invention when operating at high frequency and the incident wave is x-polarized wave21A polar coordinate graph of (a);
FIG. 7 is a schematic diagram of far-field radiation characteristics at low frequency after the novel ultra-thin all-metal dual-frequency transmission and reflection integrated array antenna unit forms a two-dimensional planar array at equal intervals;
FIG. 8 is a schematic diagram of far-field radiation characteristics at high frequency after the novel ultra-thin all-metal dual-frequency transmission and reflection integrated array antenna unit forms a two-dimensional planar array at equal intervals;
Detailed Description
The invention is described in further detail below with reference to the following figures and detailed description. The advantages and features of the present invention will become more apparent from the following description. It is to be noted that the drawings are in a very simplified form and are all used in a non-precise scale for the purpose of facilitating and distinctly aiding the description of the embodiments of the present invention. To make the objects, features and advantages of the present invention more comprehensible, reference is made to the accompanying drawings.
The invention provides a novel ultrathin all-metal dual-frequency transmission and reflection integrated array antenna unit, which comprises the following specific implementation modes:
in the invention, the low-frequency working frequency point of the dual-frequency transmission and reflection integrated array antenna unit is 10.0GHz, the high-frequency working frequency point is 22.0GHz, and the unit pitch P is selected to be 12 mm.
Referring to fig. 1 and 2, the novel ultra-thin all-metal dual-band transmission and reflection integrated array antenna unit only has a first square metal plate (1) from top to bottom; the antenna unit is a plane structure and is horizontally arranged along xoy; a first open circular groove (11), a first loading type triangular groove (12), a second loading type triangular groove (13), a third loading type triangular groove (14), a fourth loading type triangular groove (15) and a second open circular groove (16) are etched on a first square metal plate (1) of the novel ultrathin all-metal dual-frequency transmission and reflection integrated array antenna unit; the opening width of the first opening ring groove (11) is set as W2The width of the first open circular groove (11) is set to be g as 2.0mm20.5mm, inner radius set to R25.0 mm; the lengths of the first loading type triangular groove (12), the second loading type triangular groove (13), the third loading type triangular groove (14) and the fourth loading type triangular groove (15) are set to be L1The length of the loading T-shaped groove is set to be L within the range of 2.0 mm-3.0 mm2Varies within the range of 2.5mm to 3.4mm and L30.5 mm; the first loading triangular groove (12), the second loading triangular groove (13), the third loading triangular groove (14) and the fourth loading triangular groove (15) are consistent in size and symmetrically distributed along the x axis and the y axis; the opening of the second opening circular ring groove (16) is fixedly positioned at the left lower corner of the unit, and the second opening circular ring groove (16) and the four loading type triangular grooves form an asymmetric groove structure along the x axis and the y axis together; the inner radius of the second opening circular ring groove (16) is set to be R10.8mm, the width of the ring is set to g10.25mm, the opening width is set to W22.0 mm; novel ultra-thin full-metal dual-frequency transmission and reflection integrated array antenna unitThe thickness of the first square metal plate (1) is set to be h equal to 0.2mm, and the first square metal plate is made of stainless steel, aluminum alloy or other metal with good conductivity;
the central frequency points of the two frequency bands of the novel ultrathin all-metal dual-frequency transmission and reflection integrated array antenna unit are respectively 10GHz and 22GHz, and the polarization characteristics of the two frequency bands are different; when the unit works at low frequency, when the incident wave is left-handed circularly polarized wave (right-handed circularly polarized wave), the transmitted wave is right-handed circularly polarized wave (left-handed circularly polarized wave), and the reflected wave is left-handed circularly polarized wave (right-handed circularly polarized wave); when the unit works at high frequency and incident wave is x-polarized wave (y-polarized wave), the transmitted wave and the reflected wave are both y-polarized wave (x-polarized wave);
FIG. 3 and FIG. 4 are the reflection coefficient S of the novel ultra-thin all-metal dual-frequency transmission and reflection integrated array antenna unit working at low frequency and when the incident wave is left-handed circularly polarized wave11And a transmission coefficient S21The polar diagram of (a) shows the unit amplitude and phase at only 8 different sampling points; the novel ultrathin all-metal dual-frequency transmission and reflection integrated array antenna unit changes the opening angle by rotating the first opening circular ring groove (11), adjusts and controls the reflection and transmission phases and amplitudes at low frequency, and the reflection and transmission phases of the unit are always the same; the opening angle of the first opening circular ring groove (11) is rotated by 180 degrees from 0 degree, the reflection and transmission phase energy under low frequency is continuously changed at 0-360 degrees, and the linear values of the reflection and transmission amplitudes are close to the maximum value of 0.5;
FIG. 5 and FIG. 6 are the reflection coefficient S of the novel ultra-thin all-metal dual-frequency transmission and reflection integrated array antenna unit when operating at high frequency and the incident wave is x-polarized wave11And a transmission coefficient S21The polar diagram of (a) shows the unit amplitude and phase at only 8 different sampling points; the novel ultrathin all-metal dual-frequency transmission and reflection integrated array antenna unit regulates and controls the phase and amplitude of reflection and transmission at high frequency by changing the sizes of four loading type triangular grooves (12), (13), (14) and (15); the reflection and transmission phases of the unit are changed from 0 degree to 180 degrees and are always the same; mirror-image turning the second open circular groove (16) along the x-axisThen, the sizes of the four loading type triangular grooves (12), (13), (14) and (15) are changed, and 180-360-degree phase change can be realized; therefore, under high frequency, the novel ultrathin all-metal dual-frequency transmission and reflection integrated array antenna unit can continuously change the reflection and transmission phase at 0-360 degrees through mirror image overturning and size change, and the linear values of the reflection and transmission amplitudes are close to the maximum value of 0.5;
fig. 7 and 8 are schematic diagrams of far field radiation characteristics at low frequency and high frequency respectively after a two-dimensional ultra-thin all-metal planar array antenna is formed at equal intervals by using the novel ultra-thin all-metal dual-frequency transmission and reflection integrated array antenna unit; an included angle between an incident wave and a normal line of an array antenna aperture surface is set to be 20 degrees, a reflected wave beam is a left-handed circularly polarized wave (right-handed circularly polarized wave) transmitted along a + z axis under low frequency, and a transmitted wave beam is a right-handed circularly polarized wave (left-handed circularly polarized wave) transmitted along a-z axis; the reflected beam is a y-polarized wave (x-polarized wave) propagating along the + z-axis and the transmitted beam is a y-polarized wave (x-polarized wave) propagating along the-z-axis at high frequencies;
the above description is only an example of the present application and is not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.
Claims (7)
1. A novel ultrathin all-metal dual-frequency transmission and reflection integrated array antenna unit only comprises a first square metal plate (1) from top to bottom; the antenna unit is a plane structure and is horizontally arranged along xoy; a first opening circular groove (11), a first loading type triangular groove (12), a second loading type triangular groove (13), a third loading type triangular groove (14), a fourth loading type triangular groove (15) and a second opening circular groove (16) are etched on the first square metal plate (1).
2. The first (12), second (13), third (14) and fourth (15) load-bearing triangular grooves are of uniform size and symmetrically distributed along the x and y axes; the opening of the second opening circular ring groove (16) is fixedly positioned at the left lower corner of the unit, and the second opening circular ring groove (16) and the four loading type triangular grooves jointly form an asymmetric groove structure along the x axis and the y axis.
3. According to claim 1, the first square metal plate (1) of the novel ultra-thin all-metal dual-band transreflective integrated array antenna unit is made of stainless steel, aluminum alloy or other metal with good electrical conductivity.
4. According to the claim 1, the central frequency points of the two frequency bands of the novel ultrathin all-metal dual-frequency transmission and reflection integrated array antenna unit are 10GHz and 22GHz respectively, and the polarization characteristics of the two frequency bands are different; when the unit works at low frequency, when the incident wave is left-handed circularly polarized wave (right-handed circularly polarized wave), the transmitted wave is right-handed circularly polarized wave (left-handed circularly polarized wave), and the reflected wave is left-handed circularly polarized wave (right-handed circularly polarized wave); when the unit operates at a high frequency, the incident wave is an x-polarized wave (y-polarized wave), and both the transmitted wave and the reflected wave are y-polarized waves (x-polarized waves).
5. According to the claim 1, the novel ultra-thin all-metal dual-frequency transmission and reflection integrated array antenna unit changes the opening angle by rotating the first opening circular groove (11), the reflection and transmission phase and amplitude are regulated and controlled at low frequency, and the reflection and transmission phase of the unit is always the same; the opening angle of the first opening circular ring groove (11) is rotated by 180 degrees from 0 degree, the reflection and transmission phase energy under low frequency is continuously changed at 0-360 degrees, and the linear values of the reflection and transmission amplitudes are close to the maximum value of 0.5.
6. According to the claim 1 and the claim 2, the novel ultra-thin all-metal dual-frequency transmission and reflection integrated array antenna unit can adjust and control the reflection and transmission phase and amplitude at high frequency by changing the size of four loading type triangular grooves (12), (13), (14) and (15); the reflection and transmission phases of the unit are changed from 0 degree to 180 degrees and are always the same; after the second open circular groove (16) is turned over along the x-axis in a mirror image mode, the sizes of the four loading triangular grooves (12), (13), (14) and (15) are changed, and 180-360-degree phase change can be achieved; therefore, under high frequency, the novel ultrathin all-metal dual-frequency transmission and reflection integrated array antenna unit can continuously change the reflection and transmission phase at 0-360 degrees through mirror image overturning and size change, and the linear values of the reflection and transmission amplitudes are close to the maximum value of 0.5.
7. According to the claim 1, the novel ultra-thin all-metal dual-frequency transmission and reflection integrated array antenna unit is used for forming a two-dimensional ultra-thin all-metal planar array antenna at equal intervals; the planar array antenna can simultaneously radiate focused beams along the + z axis and the-z axis under two frequency bands respectively.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116387840A (en) * | 2023-05-25 | 2023-07-04 | 四川九洲电器集团有限责任公司 | Amplitude-combining modulation super-structure surface and transmission array antenna comprising same |
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