K-Band Cross-Aperture Coupled Circularly Polarized Dual Frequency Microstrip Patch Antenna with Single Feed

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

doi:10.1109/apusncursinrsm.2018.8608618

Cited by 2 publications

(3 citation statements)

References 6 publications

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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%

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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“…Modification of slots is a more common process for bandwidth enhancement. Several types of slot configuration have been proposed in some literature, such as orthogonal cross-slots [6], ring-slots [7], inclined slots [8], E-shaped slots [9,10], etc. Few works are found where patch arrays have been constructed utilizing aperture coupled patch with E-shaped slots.…”

Section: Introductionmentioning

confidence: 99%

International Journal of Electronics and Telecommunications

Paul,

Ahmed

2021

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For high speed downlinking of payload data from small satellites, a new 4×4 aperture coupled microstrip patch array antenna has been presented. The antenna is designed for the Ku band and a peak gain of 18.0 dBi is achieved within the impedance bandwidth from 11.75 GHz to 12.75 GHz. Wide bandwidth is achieved as the patch elements are excited through E-shaped slots having asymmetric side lengths and widths. Each square patch element of the array with truncated corners and appropriately placed slots generates right hand circularly polarized (RHCP) radiation with very high crosspolarization discrimination. A corporate feed network consisting of T-junctions and quarter-wave impedance transformers is developed to feed the array elements from a single coaxial port of 50 Ω. To improve the radiation from the patches and waveguiding in the feed network, two types of Rogers substrates with different dielectric constant and thickness are considered. Our proposed microstrip patch array antenna of size 7.8 cm × 6.4 cm × 0.3 cm can perform efficiently with a downlink data rate as high as 4.6 Gbps for small satellites.

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K-Band Cross-Aperture Coupled Circularly Polarized Dual Frequency Microstrip Patch Antenna with Single Feed

Abstract: The paper presents the design, modeling, simulation, and characterization of a K-band cross-aperture coupled CP microstrip patch antenna element with a single feed for dual frequency operation. The patch element can be used as a building block for a larger planar array for SATCOM.

Cited by 2 publications

References 6 publications

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

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

International Journal of Electronics and Telecommunications

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