Dual-Polarized Metal-Flare Sliced Notch Antenna Array

Kindt, Rick W.; Logan, John T.

doi:10.1109/tap.2020.2969724

Cited by 28 publications

(9 citation statements)

References 27 publications

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“…Collins 17 has developed a modular BAVA array operating from 2.5 GHz to 18 GHz with U‐shaped metallic channels. A metal‐flare sliced notch antenna array has been designed by Rick, 18 which has matching from 2.6 to 21.2 GHz. Mohamed has researched a thinned all‐metal Vivaldi phased array operating over 10–35 GHz 19 …”

Section: Introductionmentioning

confidence: 99%

An UHF to L band dual‐polarized wide‐angle scanning tapered slot phased array with tightly coupled structure

Chen

Huang

Zhu

et al. 2022

Int J RF Mic Comp-Aid Eng

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This article presents a novel dual-polarized tightly coupled tapered slot antenna (TC-TLA) array. With increased capacitive coupling effects of Ushaped metallic channels of adjacent flare-arms of TLA elements, the operational bandwidth for broadside scan increases from 4.4:1 to 5.7:1, and the bandwidth at a 50 scan increases from 3.1:1 to 5.7:1, compared with the conventional TLA array. The proposed TC-TLA array delivers over 0.35-2 GHz bandwidth, ±50 scanning coverage in the horizontal plane with an active VSWR < 3.5, and <À20 dB cross-polarization. Prototype for a 4 Â 22 dualpolarized TC-TLA array fed by 1 to 4 wide-band power dividers is fabricated and measured. Good agreement is achieved between numerical and measured results.

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Section: Introductionmentioning

confidence: 99%

An UHF to L band dual‐polarized wide‐angle scanning tapered slot phased array with tightly coupled structure

Chen

Huang

Zhu

et al. 2022

Int J RF Mic Comp-Aid Eng

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“…Vivaldi phased array antenna [8][9][10][11][12][13][14][15][16][17][18] is well-known for its wide impedance bandwidth, wide scanning range, and easy fabrication. Despite the advantages, Vivaldi arrays usually suffer from high profile.…”

Section: Introductionmentioning

confidence: 99%

“…To achieve a more than 5:1 bandwidth, the profile is usually more than 0.3λ Low . [8][9][10][11][12] Recently, some new types of Vivaldi antennas with lower profiles are proposed, such as the antipodal Vivaldi antenna (AVA) and the balanced antipodal Vivaldi antenna (BAVA). [19][20][21][22][23][24][25] However, these proposed arrays also have some shortcomings, such as the narrow bandwidth (<5:1) caused by the parasitic modes.…”

Section: Introductionmentioning

confidence: 99%

2–18 GHz balanced antipodal Vivaldi conformal phased array antenna with resistive load and shorting posts

Chen

Wang

Cheng

2022

Int J RF Mic Comp-Aid Eng

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In this paper, a 2-18 GHz balanced antipodal Vivaldi conformal phased array antenna is proposed. Firstly, the conformal array achieves a low profile of 0.11λ Low by using the tightly coupling mechanism. Here, the gap-induced element resonance (GIER) and the common mode resonance occur in the operating band, limiting the impedance bandwidth. Thus, the resistors are loaded to eliminate the GIER by suppressing the resonant current. Furthermore, the shorting posts are used to remove the common mode resonance by decreasing the resonant length. A transition structure between the stripline (SL) and the ground coplanar waveguide (GCPW) is designed to feed the antenna. The simulated results show that the array achieves a 9:1 bandwidth (2-18 GHz) for active VSWR <2.5 at broadside. Besides, the active VSWR is less than 2.5 for ±60 scanning in E-plane and 3.8 for ±45 scanning in H-plane. A 12 Â 8 array prototype is fabricated and measured to validate the performance of the array. The measured results show a good agreement with the simulation.

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“…Despite all these improvements, low-profile TCDA still exhibits less bandwidth as compared to tapered slot arrays unless resistive loading is used the aperture efficiency is reduced [13]. Notably, TCDAs have better polarization purity and much lower profile, but recent works are considering reducing cross-polarization on tapered slot arrays [14]- [16]. To further increase TCDA bandwidth, previous designs incorporated uniform resistive FSS.…”

Section: Introductionmentioning

confidence: 99%