Design of Filtering Microstrip Antenna Array With Reduced Sidelobe Level

Chen, Fu‐Chang; Hu, Hao‐Tao; Li, Run‐Shuo; Chu, Qing‐Xin; Lancaster, M.J.

doi:10.1109/tap.2016.2639469

Cited by 118 publications

(45 citation statements)

References 12 publications

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“…Recently, there has been great interest among researchers in designing antennas with filtering function [1][2][3][4][5][6][7][8][9][10][11][12]. Antennas combined with cavity filters using a substrate integrated waveguide (SIW) technique were proposed in [1][2][3].…”

Section: Introductionmentioning

confidence: 99%

“…Antennas combined with cavity filters using a substrate integrated waveguide (SIW) technique were proposed in [1][2][3]. In [4][5][6][7][8][9][10], the authors used the method of filter synthesis to design filtering antennas since the antenna unit served as a radiator as well as one of the resonators. The antenna units were designed in various forms, such as U-shape [4,5], Γ-shape [6], and fan-shape [7].…”

Section: Introductionmentioning

confidence: 99%

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Design of X-Band Integrated Filtering Pyramidal Horn Antenna

Wang¹,

Chen²,

Chu³

2019

PIER Letters

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An X-band pyramidal horn antenna with a fourth order Chebyshev filtering function is presented in this paper. Four resonators are implemented in linear rectangular waveguide in the filter design. The last stage resonator provides not only resonance pole but also radiation function. To achieve high directivity, a pyramidal horn is attached to the filter output port, with negligible effect on the filter performance. Theoretical results are calculated based on the coupling matrix between the resonators. Finally, a pyramidal horn antenna operating at 10 GHz is designed and fabricated for demonstration. The measured results have found to be in good agreement with the simulated ones.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Design of X-Band Integrated Filtering Pyramidal Horn Antenna

Wang¹,

Chen²,

Chu³

2019

PIER Letters

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“…The specific synthesis procedure is already presented by researchers in literature [1,2]. In [3], a filtering power divider fed structure is presented based on the filtering antenna synthesis method. The cascaded resonators are replaced by several multi-mode resonators, and the coupling strength between each two resonators dominates the power distribution ratio.…”

Section: Introductionmentioning

confidence: 99%

“…The cascaded resonators are replaced by several multi-mode resonators, and the coupling strength between each two resonators dominates the power distribution ratio. Different power distribution ratios are studied in [3] to reduce the sidelobe level. In [4], a dual-mode resonator is used as the feeding structure of a dual-band antenna to get a filtering response.…”

Section: Introductionmentioning

confidence: 99%

A Dual-Mode Resonator-Fed Gap Coupled Filtering Antenna With Improved Selectivity and Bandwidth

Wang¹,

Chen²,

Qian³

et al. 2019

PIER Letters

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A novel dual-mode resonator-fed filtering patch antenna with improved selectivity and bandwidth is proposed in this paper. Unlike well-known cascaded-resonator structure, the proposed filtering antenna shows five poles in the reflection coefficient response utilizing only one resonator. The gap-coupled radiating part introduces two gain zeros along each side of the gain response. Meanwhile, the dual-mode resonator feeding structure of the antenna will also produce another two gain zeros. All these four gain zeros highly improve the selectivity of the filtering antenna without increasing the number of coupling resonators. In addition, the bandwidth of the antenna is also considerably extended using this feeding structure. For validation, a prototype is designed, fabricated, and measured. The measured results agree well with the simulated ones.

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“…Several co-design methods for filter-antenna integration have been investigated by scholars in recent years. 1,2 In these works, equivalent circuit approach is commonly applied to design the filtering antenna following the conventional filter synthesis technique. [3][4][5] These designs are implemented by replacing the last stage of the filter network with an antenna modeled by a series or parallel RLC equivalent circuit.…”

mentioning

confidence: 99%

An efficient dual‐band filter‐antenna design based on simplified integration methodology

Tang

Liu

2019

Int J RF Microw Comput Aided Eng

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In this article, a newly developed filter-antenna synthesis and realization methodology is applied to design a planar dual-band filtering antenna. The synthesis method is derived based on the filter synthesis theory. As a result, a coupling coefficient expression is formulized more precisely specially for the antenna matched to the filter, which is essentially different from that in filter coupling. The synthesized circuit is realized by an efficient parameters extraction process. A third-order dualband filtering antenna integrated with two dual-mode 8-shaped resonators and a dual-inverted-L antenna is then implemented for example to illustrate the design procedure. The integration method facilitates an efficient and practical filterantenna design without complicated parameters evaluation process. Finally, the proposed filtering antenna with simple structure and controllable frequencies is developed with the use of the investigated formulations and extraction curves. The circuit is realized for 2.5/3.45-GHz WiMAX-band applications. The tested results agree well with the simulations, showing good passbands selectivity and out-ofband rejection are attained. K E Y W O R D Sdual-band, filtering antenna, high selectivity, integration methodology

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Design of Filtering Microstrip Antenna Array With Reduced Sidelobe Level

Cited by 118 publications

References 12 publications

Design of X-Band Integrated Filtering Pyramidal Horn Antenna

Design of X-Band Integrated Filtering Pyramidal Horn Antenna

A Dual-Mode Resonator-Fed Gap Coupled Filtering Antenna With Improved Selectivity and Bandwidth

An efficient dual‐band filter‐antenna design based on simplified integration methodology

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