Study of 140 GHz Waveguide Fed Lenses with Different Dielectric Constant

Chao Gu, Lu Bai

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

This paper presents two lens designs working at 140 GHz: an elliptical lens and an extended hemispherical lens. Both dielectric lenses have the same diameter and are fed by a circular waveguide to obtain symmetrical beam patterns. A novel impedance matching method is proposed to minimize the reflection between the feed and lens. Moreover, this impedance matching structure inside the lens is easy to fabricate together with the lens using computer numerical control (CNC) machining or 3D printing. Numerical studies regarding the antenna gain and loss of the material are conducted. The simulated results show that the elliptical lens has more potential due to its higher radiation efficiency and ease of manufacture. The proposed lens antenna is a low-cost candidate and suitable for millimeter-wave radar and wireless communication applications.
Original languageEnglish
Title of host publication2021 IEEE Microwave Theory and Techniques in Wireless Communications (MTTW)
PublisherIEEE
Pages1-5
Number of pages5
ISBN (Electronic)978-1-6654-2469-1
ISBN (Print)978-1-6654-2470-7
DOIs
Publication statusPublished - 23 Nov 2021
Event2021 IEEE Microwave Theory and Techniques in Wireless Communications - Riga, Latvia
Duration: 7 Oct 20218 Oct 2021

Conference

Conference2021 IEEE Microwave Theory and Techniques in Wireless Communications
Abbreviated titleMTTW
Country/TerritoryLatvia
CityRiga
Period7/10/218/10/21

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