Study of 140 GHz Waveguide Fed Lenses with Different Dielectric Constant

Chao Gu; Lu Bai

doi:10.1109/mttw53539.2021.9607185

Study of 140 GHz Waveguide Fed Lenses with Different Dielectric Constant

Chao Gu, Lu Bai

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

1 Citation (Scopus)

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 language	English
Title of host publication	2021 IEEE Microwave Theory and Techniques in Wireless Communications (MTTW)
Publisher	IEEE
Pages	1-5
Number of pages	5
ISBN (Electronic)	978-1-6654-2469-1
ISBN (Print)	978-1-6654-2470-7
DOIs	https://doi.org/10.1109/mttw53539.2021.9607185
Publication status	Published (in print/issue) - 23 Nov 2021
Event	2021 IEEE Microwave Theory and Techniques in Wireless Communications - Riga, Latvia Duration: 7 Oct 2021 → 8 Oct 2021

Conference

Conference	2021 IEEE Microwave Theory and Techniques in Wireless Communications
Abbreviated title	MTTW
Country/Territory	Latvia
City	Riga
Period	7/10/21 → 8/10/21

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10.1109/mttw53539.2021.9607185

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@inproceedings{855ce31a4dd14b7aa62b416ebac90e61,

title = "Study of 140 GHz Waveguide Fed Lenses with Different Dielectric Constant",

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.",

author = "Chao Gu and Lu Bai",

year = "2021",

month = nov,

day = "23",

doi = "10.1109/mttw53539.2021.9607185",

language = "English",

isbn = "978-1-6654-2470-7",

pages = "1--5",

booktitle = "2021 IEEE Microwave Theory and Techniques in Wireless Communications (MTTW)",

publisher = "IEEE",

address = "United States",

note = "2021 IEEE Microwave Theory and Techniques in Wireless Communications, MTTW ; Conference date: 07-10-2021 Through 08-10-2021",

}

TY - GEN

T1 - Study of 140 GHz Waveguide Fed Lenses with Different Dielectric Constant

AU - Gu, Chao

AU - Bai, Lu

PY - 2021/11/23

Y1 - 2021/11/23

N2 - 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.

AB - 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.

U2 - 10.1109/mttw53539.2021.9607185

DO - 10.1109/mttw53539.2021.9607185

M3 - Conference contribution

SN - 978-1-6654-2470-7

SP - 1

EP - 5

BT - 2021 IEEE Microwave Theory and Techniques in Wireless Communications (MTTW)

PB - IEEE

T2 - 2021 IEEE Microwave Theory and Techniques in Wireless Communications

Y2 - 7 October 2021 through 8 October 2021

ER -

Study of 140 GHz Waveguide Fed Lenses with Different Dielectric Constant

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