Study on the Two-arm Hemispherical Helical Antenna

Dong-yu, Xia; Zhang, Hou; Zhang, Qianyue; Wang, Chong

doi:10.1109/isape.2006.353329

Cited by 1 publication

(1 citation statement)

References 5 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The mechanically durable three‐dimensional (3D)‐printed hemispherical antenna is presented in Yan et al, 7 where the conductive wire was made by a selective electroless plating process. Two arms hemispherical spiral is proposed in Xia et al 8 without antenna construction. To get circular polarization over extended bandwidth and beamwidth, authors in Xia et al 9 studied a wire‐based semiellipsoidal antenna of two spiral arms with an antenna height of 100 mm and a square ground plane with a side length of 400 mm.…”

Section: Introductionmentioning

confidence: 99%

Three‐dimensional‐printed strip and paint‐based semiellipsoidal helical antenna

Ghosh

Harackiewicz

2023

Micro & Optical Tech Letters

View full text Add to dashboard Cite

A semiellipsoidal helical antenna (SEHA) is formed by scaling a hemispherical antenna in the axial direction. Effects of scaling factors on reflection coefficient (S11), axial ratio bandwidth (AR BW), and gains were analyzed thoroughly. By considering the best scaling factor, analysis is continued for strip‐based SEHA. It is observed that keeping the strip face parallel to the ground plane eliminates the concern of extra impedance matching issues and improves the overall performance over its wire‐based counterpart. For prototyping, the antenna is constructed independently on polylactic acid and acrylonitrile butadiene styrene plastic‐based supportive structures. Simulated and measured results are well agreed upon. When the height (h) in the axial direction is twice the hemispherical radius (r), the antenna provided maximum impedance and 3‐dB AR bandwidths of 144% and 77.53%, respectively, with a maximum gain of 8.83 dBi. The proposed antenna would be a good contestant in satellite communication where a broadband circularly polarized antenna is required.

show abstract

Section: Introductionmentioning

confidence: 99%