Design of a Circularly Polarized High-Gain Patch Antenna Using a Higher-Order Mode With a Heterogeneous Substrate Layer for GPS Applications
- Authors
- Kang Eunjung; Lim Tae Heung; Choo Hosung
- Issue Date
- Jul-2023
- Publisher
- IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
- Citation
- IEEE ACCESS, v.11, pp 79224 - 79231
- Pages
- 8
- Journal Title
- IEEE ACCESS
- Volume
- 11
- Start Page
- 79224
- End Page
- 79231
- URI
- https://scholarworks.bwise.kr/kumoh/handle/2020.sw.kumoh/28490
- DOI
- 10.1109/ACCESS.2023.3298630
- ISSN
- 2169-3536
- Abstract
- This paper proposes a circularly polarized (CP) high-gain low-profile patch antenna using a higher-order mode with a heterogeneous layer for global positioning system (GPS) applications. To obtain theoretical insights, we analyze a CP patch using the cavity model, which has two feeding points. Radiated electric fields (E-fields) are derived from the sum of the TM030x and TM003x modes with a 90(?) phase difference at each port using a hybrid chip coupler. To verify the performance of the proposed antenna, it is fabricated and measured in a full anechoic chamber to obtain the antenna characteristics. The measured and simulated reflection coefficients of the proposed antenna are -33.1 dB and -28.3 dB at 1.575 GHz, respectively. The measured and simulated maximum gains are 9.1 dBic and 9.4 dBic at 1.575 GHz, respectively.
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Collections - School of Electronic Engineering > 1. Journal Articles
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