Wideband Full-Corporate-Feed Waveguide Continuous Transverse Stub Antenna Array | Zendy

Qingchun You | Zendy; Yunlong Lu | Zendy; Yang You | Zendy; Yi Wang | Zendy; Zhang-Cheng Hao | Zendy; Jifu Huang | Zendy

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Wideband Full-Corporate-Feed Waveguide Continuous Transverse Stub Antenna Array

Author(s) -

Qingchun You,

Yunlong Lu,

Yang You,

Yi Wang,

Zhang-Cheng Hao,

Jifu Huang

Publication year - 2018

Publication title -

ieee access

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.587

H-Index - 127

ISSN - 2169-3536

DOI - 10.1109/access.2018.2883590

Subject(s) - aerospace , bioengineering , communication, networking and broadcast technologies , components, circuits, devices and systems , computing and processing , engineered materials, dielectrics and plasmas , engineering profession , fields, waves and electromagnetics , general topics for engineers , geoscience , nuclear engineering , photonics and electrooptics , power, energy and industry applications , robotics and control systems , signal processing and analysis , transportation

A Ka-band waveguide continuous transverse stub antenna array with full-corporate-feed network is presented in this paper. Multiple-section stepped-impedance transformers are used for wideband impedance matching of the radiation slots. The required high-quality quasi-TEM wave excitation is generated by a wideband plane-wave generator (WPWG). Compared with the conventional pillbox structure, the WPWG produces a quasi-TEM wave with more uniform amplitude distribution. By using the combination of these design features, significant increases both in bandwidth and antenna aperture efficiency are achieved. For demonstration, a prototype is designed, fabricated, and measured. Excellent agreement is achieved between simulations and measurements. The antenna is matched over the entire Ka-band of 26-40 GHz. A high antenna aperture efficiency of over 75% and a low cross-polarization of less than -46 dB are achieved over the entire bandwidth. The demonstrated features of wideband, high aperture efficiency, and low cross-polarization have great potentials for millimeter-wave applications.

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