Feasibility Study of K-band E-Shaped Circularly Polarized Microstrip Patch Antenna Elements for SATCOM Receive Arrays

Kortright, Miguel A. Barbosa; Simons, Rainee N.

doi:10.1109/apusncursinrsm.2018.8608214

Cited by 1 publication

(2 citation statements)

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Section: Comparative Analysismentioning

confidence: 99%

“…The proposed antenna, which is a compact and low-profile structure, exhibits high gain. A comparison of the proposed antenna characteristics with other antennas presented in the literature [32][33][34][35] is given in Table 1. Since the operational bandwidth is from 23.25 GHz to 24.1 GHz, it can receive LHCP signals at 23.4 and 23.7 GHz through port 2 and radiate components in RHCP through port 1, indicating that the proposed structure can operate as a tag antenna in the aforementioned applications.…”

Section: Comparative Analysismentioning

confidence: 99%

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Compact Dual-Circularly Polarized Traveling-Wave Series-Fed Patch Array for Use as a Non-Linear Tag Antenna for Bio-Sensing Applications

Lee

Hong

2023

Applied Sciences

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This paper proposes a compact K-band dual-circularly polarized antenna that can be implemented on a non-linear tag based on third-order intermodulation (IM3) for bio-sensing applications. The proposed antenna has the characteristics of being low-profile and lightweight, with opposite circular polarizations (CP) between ports. The non-linear tag-based bio-sensing scenario utilizes K-band millimeter wave frequencies, which allows for compact non-linear tags for attachment to the body. Also, the proposed antenna features dual-CP, which are for the reception and re-radiation of incident transmit signals and the IM3 responses, respectively. To this end, a two-port traveling-wave series-fed patch array with coplanar proximity coupling is designed. Here, to minimize the size of the antenna, we use only four circular patch elements with a modified diamond-shaped microstrip feedline. Through simulation and measurement, we demonstrate that the proposed antenna has an axial ratio of less than 3 dB from 23.25 GHz to 24.1 GHz, with the reflection coefficients below −10 dB and port-to-port coupling below −15 dB. These results indicate the potential utility of the proposed antenna as a tag antenna for non-linear detection-based bio-sensing applications.

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Section: Comparative Analysismentioning

confidence: 99%

Section: Comparative Analysismentioning

confidence: 99%