Design of Dual Band Comb Shaped Patch Antenna with Strip Defected Ground for Wireless Communications

Ganesh, G.

doi:10.1109/spin52536.2021.9566088

Cited by 1 publication

(1 citation statement)

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“…This paper presents a conformal MIMO antenna with DGS structure that operates at dual frequencies for wireless application [9]. The proposed antennas have resonated at 9.49 GHz and 11.8 GHz and the return loss is less than -10 dB.…”

Section: Introductionmentioning

confidence: 99%

A Novel C/X-Band Linear Polarized Conformal Shared Aperture Antenna Array for Spaceborne SAR Applications

Nunna,

Kothapudi

2023

IEEE Access

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In this work, a dual-band linear polarized C/X conformal shared aperture antenna (SAA)for spaceborne SAR applications is presented. The proposed single layer SAA is designed with a square-shaped patch in linear polarization and arranged as four elements (2x2) array with corporate feeding to allow for efficient signal transmission. The design of that operates at C-band (5.35 GHz) and X-band (9.65 GHz). Most spaceborne applications, such satellite radar and weather forecasting, employ the C-band antenna. On the other hand, X-band antennas are used for surveillance, reconnaissance, air traffic control, and weather monitoring. A prototype is built, and its s-parameters are tested to confirm the antenna. With the suggested design, we were able to obtain a bandwidth of 65MHz for C-band and 354MHz for X-band, as well as gains of 13.2 dBi for the C-band and 10.6 dBi for the X-band, and isolation of more than 40 dB. The total size of the SAA size is 130 × 80 × 0.8 mm. According to this study, dual band antennas operating future SAR spacecraft on a same aperture is a practical solution to satisfy user demands.INDEX TERMS Conformal antenna, shared aperture antenna, linear polarization, corporate feed, spaceborne, synthetic aperture radar.

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Section: Introductionmentioning

confidence: 99%