Design of a broad-band microstrip loop antennas with less-dispersive group velocity for accurate direction finding
- Authors
- Yoo, Sungjun; Byun, Gangil; Choo, Hosung
- Issue Date
- 27-Nov-2019
- Publisher
- INST ENGINEERING TECHNOLOGY-IET
- Keywords
- antenna feeds; loop antennas; electromagnetic coupling; microstrip antennas; antenna radiation patterns; direction-of-arrival estimation; broadband antennas; dual-axis phase interferometry; horizontal placement; vertical placement; four-element array; electromagnetic coupling; radiating microstrip loops; feeding microstrip loops; DoA estimation; direction of arrival estimation; less-dispersive behaviour; wide frequency band; feeding loop; radiating loop; radiation patterns; accurate direction finding; less-dispersive group velocity; broad-band microstrip loop antennas
- Citation
- IET MICROWAVES ANTENNAS & PROPAGATION, v.13, no.14, pp.2495 - 2500
- Journal Title
- IET MICROWAVES ANTENNAS & PROPAGATION
- Volume
- 13
- Number
- 14
- Start Page
- 2495
- End Page
- 2500
- URI
- https://scholarworks.bwise.kr/hongik/handle/2020.sw.hongik/826
- DOI
- 10.1049/iet-map.2019.0640
- ISSN
- 1751-8725
- Abstract
- This study proposes the design of broad-band microstrip loop antennas with less-dispersive group velocity of radiation patterns for accurate direction of arrival (DoA) estimation. The proposed structure consists of radiating and feeding microstrip loops, and the radiating loop is electromagnetically coupled to the feeding loop. This feeding mechanism helps to suppress phase variations of radiating patterns by avoiding dual resonances within a wide frequency band over 60 MHz, which allows to obtain the less-dispersive group velocity for accurate DoA estimation. The effectiveness of the less-dispersive behaviour is validated by implementing the proposed structure into a four-element array to estimate vertical and horizontal placements using dual-axis phase interferometry. The results confirm that the proposed antenna has less-dispersive group velocity compared to a conventional microstrip patch antenna and is more suitable for accurate DoA estimation.
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Collections - College of Engineering > School of Electronic & Electrical Engineering > 1. Journal Articles
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