A 140 GHz High Efficiency Slotted Waveguide Antenna using a Low Loss Feeding Network

Yi-Wen Wu; Zhang-Cheng Hao; Zhuo-Wei Miao; Wei Hong; Jia-Sheng Hong

doi:10.1109/LAWP.2019.2954138

A 140 GHz High Efficiency Slotted Waveguide Antenna using a Low Loss Feeding Network

Yi-Wen Wu, Zhang-Cheng Hao, Zhuo-Wei Miao, Wei Hong, Jia-Sheng Hong

Research output: Contribution to journal › Article › peer-review

35 Citations (Scopus)

562 Downloads (Pure)

Abstract

This letter proposes a 140 GHz high-efficiency slotted waveguide antenna with a low-loss feeding network. The feeding network provides the same-magnitude but alternating-phase excitations for the slotted parallel-plate waveguide (PPW) array. The alternating-phase excitations are used to implement virtual electric walls (VEWs) for replacing the physical metal walls. Hence, the antenna efficiency is improved significantly. To verify the proposed method, an 8 × 8 slot array with the proposed feeding network is designed and fabricated, which has a fractional bandwidth of 10.17%, i.e., from 132 to 146.15 GHz. Experimental results show that the radiation and aperture efficiency of the prototype can be as high as 93.4% and 73.2%, respectively. The measured antenna has a peak radiation gain of 24.59 dBi at 137.5 GHz and a flat in-band gain. The proposed antenna provides a promising solution to develop high-efficiency upper millimeter-wave and sub-terahertz (THz) applications.

Original language	English
Pages (from-to)	94-98
Number of pages	5
Journal	IEEE Antennas and Wireless Propagation Letters
Volume	19
Issue number	1
Early online date	18 Nov 2019
DOIs	https://doi.org/10.1109/LAWP.2019.2954138
Publication status	Published - Jan 2020

Keywords

140 GHz
alternating-phase excitations
high-efficiency antenna
virtual electric walls (VEWs)

ASJC Scopus subject areas

Electrical and Electronic Engineering

Access to Document

10.1109/LAWP.2019.2954138

Download pdf
© 2019 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
Accepted author manuscript, 4.45 MB

Cite this

@article{85b032a71eb0482a89fe01d8697262d7,

title = "A 140 GHz High Efficiency Slotted Waveguide Antenna using a Low Loss Feeding Network",

abstract = "This letter proposes a 140 GHz high-efficiency slotted waveguide antenna with a low-loss feeding network. The feeding network provides the same-magnitude but alternating-phase excitations for the slotted parallel-plate waveguide (PPW) array. The alternating-phase excitations are used to implement virtual electric walls (VEWs) for replacing the physical metal walls. Hence, the antenna efficiency is improved significantly. To verify the proposed method, an 8 × 8 slot array with the proposed feeding network is designed and fabricated, which has a fractional bandwidth of 10.17%, i.e., from 132 to 146.15 GHz. Experimental results show that the radiation and aperture efficiency of the prototype can be as high as 93.4% and 73.2%, respectively. The measured antenna has a peak radiation gain of 24.59 dBi at 137.5 GHz and a flat in-band gain. The proposed antenna provides a promising solution to develop high-efficiency upper millimeter-wave and sub-terahertz (THz) applications.",

keywords = "140 GHz, alternating-phase excitations, high-efficiency antenna, virtual electric walls (VEWs)",

author = "Yi-Wen Wu and Zhang-Cheng Hao and Zhuo-Wei Miao and Wei Hong and Jia-Sheng Hong",

year = "2020",

month = jan,

doi = "10.1109/LAWP.2019.2954138",

language = "English",

volume = "19",

pages = "94--98",

journal = "IEEE Antennas and Wireless Propagation Letters",

issn = "1536-1225",

publisher = "IEEE",

number = "1",

}

TY - JOUR

T1 - A 140 GHz High Efficiency Slotted Waveguide Antenna using a Low Loss Feeding Network

AU - Wu, Yi-Wen

AU - Hao, Zhang-Cheng

AU - Miao, Zhuo-Wei

AU - Hong, Wei

AU - Hong, Jia-Sheng

PY - 2020/1

Y1 - 2020/1

N2 - This letter proposes a 140 GHz high-efficiency slotted waveguide antenna with a low-loss feeding network. The feeding network provides the same-magnitude but alternating-phase excitations for the slotted parallel-plate waveguide (PPW) array. The alternating-phase excitations are used to implement virtual electric walls (VEWs) for replacing the physical metal walls. Hence, the antenna efficiency is improved significantly. To verify the proposed method, an 8 × 8 slot array with the proposed feeding network is designed and fabricated, which has a fractional bandwidth of 10.17%, i.e., from 132 to 146.15 GHz. Experimental results show that the radiation and aperture efficiency of the prototype can be as high as 93.4% and 73.2%, respectively. The measured antenna has a peak radiation gain of 24.59 dBi at 137.5 GHz and a flat in-band gain. The proposed antenna provides a promising solution to develop high-efficiency upper millimeter-wave and sub-terahertz (THz) applications.

AB - This letter proposes a 140 GHz high-efficiency slotted waveguide antenna with a low-loss feeding network. The feeding network provides the same-magnitude but alternating-phase excitations for the slotted parallel-plate waveguide (PPW) array. The alternating-phase excitations are used to implement virtual electric walls (VEWs) for replacing the physical metal walls. Hence, the antenna efficiency is improved significantly. To verify the proposed method, an 8 × 8 slot array with the proposed feeding network is designed and fabricated, which has a fractional bandwidth of 10.17%, i.e., from 132 to 146.15 GHz. Experimental results show that the radiation and aperture efficiency of the prototype can be as high as 93.4% and 73.2%, respectively. The measured antenna has a peak radiation gain of 24.59 dBi at 137.5 GHz and a flat in-band gain. The proposed antenna provides a promising solution to develop high-efficiency upper millimeter-wave and sub-terahertz (THz) applications.

KW - 140 GHz

KW - alternating-phase excitations

KW - high-efficiency antenna

KW - virtual electric walls (VEWs)

UR - http://www.scopus.com/inward/record.url?scp=85078546504&partnerID=8YFLogxK

U2 - 10.1109/LAWP.2019.2954138

DO - 10.1109/LAWP.2019.2954138

M3 - Article

SN - 1536-1225

VL - 19

SP - 94

EP - 98

JO - IEEE Antennas and Wireless Propagation Letters

JF - IEEE Antennas and Wireless Propagation Letters

IS - 1

ER -

A 140 GHz High Efficiency Slotted Waveguide Antenna using a Low Loss Feeding Network

Abstract

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this