Broadband High-Gain SIW Cavity-Backed Circular-Polarized Array Antenna

Guan, Dong‐Fang; Ding, Can; Zhang, Qian; Zhang, Yingsong; Guo, Y. Jay; Gong, Ke

doi:10.1109/tap.2016.2521904

Cited by 113 publications

(41 citation statements)

References 13 publications

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“…On top of each cavity, rectangular slots with the size of L s × W s are etched to radiate the energy in broadside direction. The operating mechanism and the radiation performance of the 2 × 2 sub‐array have been analyzed in our previous work . It has been verified that the 2 × 2 sub‐array has consistent high‐gain and boresight radiation in a wideband from 18.25 GHz to 21.1 GHz.…”

Section: Linear Array Designmentioning

confidence: 93%

High gain substrate integrated waveguide beam scanning antenna with sub‐array elements

Yang

Guan

Liu

et al. 2019

Int J RF Microw Comput Aided Eng

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A method to enhance the gain of substrate integrated waveguide (SIW) beam scanning antenna is proposed in this article. 2 × 2 SIW cavity‐backed sub‐arrays are employed in array design. The antenna is constructed on two layers. The top layer places four SIW cavity‐backed sub‐arrays as radiating elements and the bottom layer is an SIW transmission line to feed the sub‐arrays. Beam scanning feature can be obtained due to the frequency dispersion. Moreover, through separating radiators to the other layer and using 2 × 2 SIW cavity‐backed sub‐arrays as radiating parts, the antenna gain is improved significantly. For a linear array, 4.1 to 6.8 dB gain enhancement is achieved compared to a conventional SIW beam scanning antenna with the same length. Then, the linear array is expanded to form a planar array for further gain improvement. A 64‐element planar beam scanning array is designed, fabricated, and tested. Experimental results show that the proposed planar array has a bandwidth from 18.5 GHz to 21. 5 GHz with beam scanning angle from −5° to 11.5° and gain in the range of 20.5 to 21.8 dBi. The proposed high gain beam scanning antennas have potential applications in radar detection and imaging.

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Section: Linear Array Designmentioning

confidence: 93%

High gain substrate integrated waveguide beam scanning antenna with sub‐array elements

Yang

Guan

Liu

et al. 2019

Int J RF Microw Comput Aided Eng

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“…There are many slotted antennas in the literature utilizing planar SIW, where both of longitudinal slot [8] and transverse slot [9] on the broad wall of an SIW can be used as radiating elements for a linearly polarized SIW slot array. A nonlinearly polarized SIW slot antenna array can be designed by rotating the slots [10][11][12][13] or cavities with compound slots [14][15][16][17][18], or even using annular, triangular or split ring slots [19][20][21]. However, sometimes sizes of these antennas may be too large for practical applications and highly affect the integration process.…”

Section: Introductionmentioning

confidence: 99%

Half-Arrow Slot Antenna for Inter-Satellite Communications

Maged¹,

El-Hefnawi²,

Akah³

et al. 2018

PIER Letters

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In this paper, a novel HMSIW slot antenna combines a significant bandwidth enhancement and small footprint for inter-satellite communications at C-band. The designed antenna has the capability of achieving a reduction of size with nearly 50% in comparison to conventional SIWs. The results show that the proposed antenna has a bandwidth of 4%, an average gain of 5.8 dB, and the radiation efficiency of η = 93% at 5 GHz.

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“…Substrate integrated waveguide (SIW) is a competitive transmission line as it has the merits of both microstrip line and metallic waveguide . With the advantages of low profile, low loss, low interference, and easiness of integrating with planar circuits, SIW has been proposed to design many high‐quality microwave and millimeter wave components, including filters.…”

Section: Introductionmentioning

confidence: 99%

A broadband filter based on hybrid spoof surface plasmon and half‐mode substrate integrated waveguide structure

Guan

You

Yang

et al. 2018

Int J RF Microw Comput Aided Eng

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In this article, a novel design way of wideband bandpass filter (BPF) is proposed. A hybrid sharing waveguide based on spoof surface plasmon (SSP) and half‐mode substrate integrated waveguide (HMSIW) is developed. With low‐pass feature of SSP and high‐pass feature of HMSIW, the proposed waveguide is a BPF naturally and the filter bandwidth can be controlled by adjusting parameters easily. A filter sample is fabricated for verification and the measured 3‐dB bandwidth is 46%. The proposed new concept of filter design is attractive and can be used to develop different wideband BPFs.

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Broadband High-Gain SIW Cavity-Backed Circular-Polarized Array Antenna

Cited by 113 publications

References 13 publications

High gain substrate integrated waveguide beam scanning antenna with sub‐array elements

High gain substrate integrated waveguide beam scanning antenna with sub‐array elements

Half-Arrow Slot Antenna for Inter-Satellite Communications

A broadband filter based on hybrid spoof surface plasmon and half‐mode substrate integrated waveguide structure

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