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A Reconfigurable Dual Beam Periodic Leaky-Wave Antenna

A leaky wave antenna and periodic technology, applied in the field of communication antennas, to achieve the effect of flexible and variable beam coverage

Active Publication Date: 2022-07-01
SUN YAT SEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, the above-mentioned existing technologies can realize the reconfigurable radiation pattern of the leaky wave antenna at a fixed frequency, but the existing research only converts frequency scanning into electronic scanning, and its radiation pattern is still single-beam radiation

Method used

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  • A Reconfigurable Dual Beam Periodic Leaky-Wave Antenna
  • A Reconfigurable Dual Beam Periodic Leaky-Wave Antenna
  • A Reconfigurable Dual Beam Periodic Leaky-Wave Antenna

Examples

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Embodiment 1

[0047] like figure 1 , figure 2 , image 3 As shown, a reconfigurable dual-beam periodic microstrip leaky wave antenna includes a metal floor 2, a microstrip line 3, a stub 4, a dielectric plate 1, a PIN diode 5, a first inductor 6, a first direct Current bias line 7, first DC pad 8, second inductor 9, second DC bias line 10, second DC pad 11;

[0048]The microstrip line 3 and the stub 4 are located on the upper surface of the dielectric board 1, and the metal floor 2 is located on the lower surface of the dielectric board 1;

[0049] One end of the PIN diode 5 is connected to one side of the microstrip line 3 , and the other end of the PIN diode 5 is connected to one end of the stub 4 ; the other end of the stub 4 is connected to one end of the first inductor 6 . connected; the other end of the first inductor 6 is connected to one end of the first DC bias line 7; the other end of the first DC bias line 7 is connected to the first DC pad 8;

[0050] The PIN diode 5, the s...

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Abstract

The invention discloses a reconfigurable dual-beam periodic microstrip leaky wave antenna, comprising a metal floor, a microstrip line, a stub, a dielectric plate, a PIN diode, a first inductor, a first DC bias line, The first DC pad, the second inductor, the second DC bias line, and the second DC pad; the microstrip line and the stub are located on the upper surface of the dielectric board, and the metal floor is located on the lower surface of the dielectric board; the PIN diode is connected to the The microstrip line is connected, the PIN diode is connected with the stub; the stub is connected with the first inductor; the first inductor is connected with the first DC bias line; the first DC bias line is connected with the first DC pad ; PIN diode, stub, PIN diode, the first inductor, the first DC bias line, the first DC pad form a radiation unit, wherein the stub is used as a radiation element; the radiation unit is provided with several The second inductance is connected to the microstrip line, and the second inductance is sequentially connected to the second DC bias line and the second DC pad; both ends of the microstrip line are provided with feeding probes.

Description

technical field [0001] The present invention relates to the technical field of communication antennas, and more particularly, to a reconfigurable dual-beam periodic leaky wave antenna. Background technique [0002] Leaky-wave antennas are an attractive traveling-wave antenna with a simple structure that can provide frequency sweeping beams, narrow beams, high gain and low profile. Most periodic leaky-wave antennas introduce a series of periodic discontinuities (openings or slits) in a guided-wave structure to generate radiation. Using space harmonic theory, the periodic aperture field is expanded into infinite space harmonic terms, in which fast waves can be radiated and slow waves are bound to the antenna aperture as surface waves. The radiation of this type of antenna is contributed by n=-1 space harmonics, which appear as a single-beam radiation pattern. Switchable beams can be obtained by changing the frequency of the leaky-wave antenna. However, this characteristic p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q1/36H01Q1/50H01Q13/08H01Q3/00H01Q1/48
CPCH01Q1/36H01Q1/50H01Q13/08H01Q3/00H01Q1/48
Inventor 刘菊华陈锡伦
Owner SUN YAT SEN UNIV
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