An EH<sub>0</sub>-Mode Microstrip Leaky-Wave Antenna With Periodical Loading of Shorting Pins

Xie, Danpeng; Li, Zhu; Zhang, Xiao

doi:10.1109/tap.2017.2700882

Cited by 41 publications

(12 citation statements)

References 22 publications

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“…A variety of different radiation characteristics of EH 2 ‐mode LWA were also designed by loading different forms of slot 21 . With the help of periodic shorting pins, the fundamental mode (EH 0 ) can also produce leaky region and radiate dual‐beam 22,23 . Limited researches have been conducted to achieve dual‐band LWA based on MSL.…”

Section: Introductionmentioning

confidence: 99%

Design of dual‐band leaky wave antenna based on microstrip to EH ₀ / EH ₁ ‐mode converter

Xue

Sun

Wang

et al. 2021

Int J RF Mic Comp-Aid Eng

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In this work, a microstrip leaky‐wave antenna (LWA) under EH0/EH1‐mode excitations is proposed for dual‐band application. By introducing periodic shorting pins in the microstrip line, the leaky wave regions of EH0 and EH1‐mode are created in two operation bands respectively. According to the electric field distribution of EH0 and EH1‐mode, the equal phase feeding network is constructed to excite EH0‐mode, while the EH1‐mode needs the excitation with opposite phase feeding. To satisfy this special phase requirement in two operation bands, a dual‐mode converter is designed based on a one‐wavelength‐ring balun, which provides two passbands with equal/opposite phase operations. To validate this proposal, a prototype of this dual‐band LWA is designed and fabricated. The measured results exhibit that the proposed antenna could radiate beams under EH0‐mode in 4.2 GHz and EH1‐mode in 6.3 GHz.

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Section: Introductionmentioning

confidence: 99%

Design of dual‐band leaky wave antenna based on microstrip to EH ₀ / EH ₁ ‐mode converter

Xue

Sun

Wang

et al. 2021

Int J RF Mic Comp-Aid Eng

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“…It exhibits a frequency-dependent steerable beam scanning under the first higher-order EH 1 mode of a microstrip line (MSL). Afterwards, a large number of researchers have been attracted to study and explore these MLWAs [2][3][4][5][6][7][8][9][10] for a variety of applications in Doppler radar, target tracking, cruise control, and collision avoidance system etc., due to their attractive features, inclusive of planar configuration, easy integration with other integrated circuits, and frequency-dependent beam-scanning ability.…”

Section: Introductionmentioning

confidence: 99%

“…As reported in [23,24], shunt inductive effect of shorting pins perturbing the field distribution beneath the patch has successfully enlarged the radiation area at resonance, resulting to improve the directivity of a single patch antenna. From this perspective, the periodical loading of shorting pins [9] could be similarly implemented in an EH 1mode MLWA to widen its electrical strip width under its transverse resonance. As such, the enlarged distance between two in-phase parallel magnetic-current line sources under the EH 1 -mode operation with widened strip width could facilitate us to effectively narrow the radiation beamwidth in the transverse plane for enhancement of radiation gain.…”

Section: Introductionmentioning

confidence: 99%

Gain‐enhanced EH ₁ ‐mode microstrip leaky‐wave antenna with periodical loading of shorting pins

Xie

Xiao

et al. 2018

IET Microwaves, Antennas & Propagation

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A gain‐enhanced EH1‐mode microstrip leaky‐wave antenna (MLWA) with periodical loading of shorting pins to improve the radiation gain is proposed. Owing to the equivalent shunt inductive effect of the periodically installed shorting pins, the cut‐off frequency of the proposed pin‐loaded EH1‐mode microstrip line (MSL) is effectively tuned up; in other words, the lateral electric dimension of the proposed MLWA is effectively enlarged. Therefore, the distance of a pair of in‐phase equivalent magnetic‐current line sources in two sides of the MSL is widened, resulting to increase the radiation gain of the proposed MLWA. For the sake of theoretical explanation, an analytical model is built up for analysis. Then, numerical investigation is executed to reveal the effect of pins position on the tuning ratio of both the EH1‐mode cut‐off frequencies and strip widths. After extensive analysis, a pin‐loaded EH1‐mode MLWA under width tuning ratio of 1.78 and periodicity of 10.0 mm is designed, fabricated, and tested. Simulated and measured results both demonstrate that the radiation gain could be successfully raised up from 10.1 dBi (conventional EH1‐mode MLWA) to 13.1 dBi (the proposed pin‐loaded one) at the same operating frequency of 4.0 GHz.

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“…Periodic leaky wave antennas have been an interesting candidate for beam scanning applications, multiband antennas, and multi‐beam antennas …”

Section: Introductionmentioning

confidence: 99%

“…Luxey and Laheurte used a periodic capacitive loading for electronic beam steering and Archbold et al took this technique further by reporting a synthesizing scheme to calculate the edge capacitance needed for desired main beam positioning. Shunt inductor loading in the form of shorting vias were used in to make the EH 0 mode of the microstrip line radiate. Microstrip stubs along with electronic switches have been effectively used in for periodic reactive loading of leaky wave antenna design.…”

Section: Introductionmentioning

confidence: 99%

Design guidelines for single and dual wide band leaky periodic microstrip line antennas

Patra

Dhar²,

Gupta

2018

Int J RF Microw Comput Aided Eng

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Leaky wave antennas using periodic microstrip lines are natural choices for versatile beam scanning applications. In this work, a shorted stub and an open stub are simultaneously used in the same unit cell to generate resonant frequencies dependent on the stub dimensions. Placing one such resonant frequency at the second Bragg stop band, a single wideband response is obtained. Next, the stub lengths are tuned to obtain two resonant frequencies which are placed at the second and fourth Bragg stop bands, respectively to obtain a dual wideband response. Design guidelines are outlined for obtaining these wide bands and corresponding radiation regions. Two such geometries with single and dual‐band nature are fabricated. The single wide‐band antenna has a pass‐band from 5.89 to 11.57 GHz with a beam scanning range of −56° to 33°. The dual‐band antenna has two pass‐bands radiating in the frequency range 5‐6.5 GHz and 10.7‐14.7 GHz. Beam scanning range in the first pass‐band is −72° to −5°. The second pass‐band, in part, demonstrates a dual‐beam nature with the forward beam scanning from 28.9° to 54.5° and backward beam scanning from −54.5° to 14.76° as the frequency varies from 12 to 14.5 GHz.

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An EH₀-Mode Microstrip Leaky-Wave Antenna With Periodical Loading of Shorting Pins

Cited by 41 publications

References 22 publications

Design of dual‐band leaky wave antenna based on microstrip to EH ₀ / EH ₁ ‐mode converter

Design of dual‐band leaky wave antenna based on microstrip to EH ₀ / EH ₁ ‐mode converter

Gain‐enhanced EH ₁ ‐mode microstrip leaky‐wave antenna with periodical loading of shorting pins

Design guidelines for single and dual wide band leaky periodic microstrip line antennas

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An EH0-Mode Microstrip Leaky-Wave Antenna With Periodical Loading of Shorting Pins

Cited by 41 publications

References 22 publications

Design of dual‐band leaky wave antenna based on microstrip to EH 0 / EH 1 ‐mode converter

Design of dual‐band leaky wave antenna based on microstrip to EH 0 / EH 1 ‐mode converter

Gain‐enhanced EH 1 ‐mode microstrip leaky‐wave antenna with periodical loading of shorting pins

Design guidelines for single and dual wide band leaky periodic microstrip line antennas

Contact Info

Product

Resources

About

An EH₀-Mode Microstrip Leaky-Wave Antenna With Periodical Loading of Shorting Pins

Design of dual‐band leaky wave antenna based on microstrip to EH ₀ / EH ₁ ‐mode converter

Design of dual‐band leaky wave antenna based on microstrip to EH ₀ / EH ₁ ‐mode converter

Gain‐enhanced EH ₁ ‐mode microstrip leaky‐wave antenna with periodical loading of shorting pins