Design of a dual‐CP gap waveguide fed aperture array antenna

Zarifi, Davoud; Farahbakhsh, Ali; Zaman, Ashraf Uz

doi:10.1049/mia2.12379

Cited by 2 publications

(1 citation statement)

References 29 publications

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“…The recent research articles show a demonstration of some GW-based antennas with passive components [24][25][26][27][28]. Several GW-based antenna arrays with CP radiation have been proposed [29][30][31][32][33][34][35]. In [30], a SIGW-fed 4-element circularly polarized antenna array is presented with an impedance bandwidth (IBW) of 25.6%, AR bandwidth (ARBW) of 19%, and peak gain of 11.53 dBic for Ku-band applications.…”

Section: Introductionmentioning

confidence: 99%

A Wideband Gap Waveguide-Fed 16-Element Circularly Polarized Patch Antenna Array

Alazemi,

Farahbakhsh,

Zarifi

2023

IEEE Access

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This paper presents a design of a 4×4 circularly polarized (CP) patch antenna array based on gap waveguide (GW) sequential feeding network. The proposed antenna single element consists of an aperture coupled circular patch antenna. A two-level sequential feeding network, that is used to enhance the polarization bandwidth, is designed, and investigated. The GW technology is employed to decrease the feeding network loss; and consequently, to achieve a low-loss antenna array. The antenna input port is a standard waveguide (WR-28), and it is coupled to the GW-based feed network using an appropriate transition. The proposed array is printed on RT5880 substrate, (with a relative permittivity of 2.2). The measured and simulated results show that both input |S11| and axial ratio bandwidths are greater than 30% over the frequency range of 25.8-35 GHz. The maximum gain is 18 dBic. The proposed work is considered a great choice for millimeter-wave applications.INDEX TERMS Circular Polarization, Patch antenna, Millimeter wave, Gap waveguide.

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Section: Introductionmentioning

confidence: 99%

A Wideband Gap Waveguide-Fed 16-Element Circularly Polarized Patch Antenna Array

Alazemi,

Farahbakhsh,

Zarifi

2023

IEEE Access

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Realizing Orthogonal Modes in Compact Cavity‐Backed Dual‐Polarized Antenna Through Simple Feeding Structures for Millimeter‐Wave AiP Applications

Huang,

Lin

2024

Radio Science

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This paper presents a dual‐polarized cavity‐backed antenna designed for mm‐wave applications, featuring simple feeding structures with a high‐isolation for 60 GHz compact AiP applications. The dual‐polarization design relies on two separate feed ports that excite two orthogonal modes within the same resonant cavity, achieving very high port isolation of up to 40 dB over the entire band. We conducted a detail analysis of the antenna, including its working principles and parametric studies. For verification, we fabricated an antenna test kit using standard printed process on substrates and measured the kit from the back‐side of a GSG probing platform. The proposed antenna demonstrates a wide impedance bandwidth, stable radiation patterns, very low cross‐polarization levels, and a high radiation efficiency. The co‐located cavity‐backed design ensures the compactness and facilitates easy integration with ICs in a very small AiP module. These features make the proposed antenna highly suitable for 60 GHz AiP applications, such as high‐data‐rate wireless communication and mmW polarimetric radar systems.

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Design of a dual‐CP gap waveguide fed aperture array antenna

Cited by 2 publications

References 29 publications

A Wideband Gap Waveguide-Fed 16-Element Circularly Polarized Patch Antenna Array

A Wideband Gap Waveguide-Fed 16-Element Circularly Polarized Patch Antenna Array

Realizing Orthogonal Modes in Compact Cavity‐Backed Dual‐Polarized Antenna Through Simple Feeding Structures for Millimeter‐Wave AiP Applications

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