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Communication

A Simple Printed Cross-Dipole Antenna with Modified Feeding Structure and Dual-Layer Printed Reflector for Direction Finding Systems

1
Electronics Engineering Department, Hanbat National University, Daejeon 34158, Korea
2
Communication RF Research Section, Radio & Satellite Research Division, Electronics and Telecommunications Research Institute (ETRI), Daejeon 34129, Korea
*
Author to whom correspondence should be addressed.
Academic Editor: Shah Nawaz Burokur
Sensors 2021, 21(17), 5966; https://doi.org/10.3390/s21175966
Received: 5 August 2021 / Revised: 27 August 2021 / Accepted: 2 September 2021 / Published: 6 September 2021
In this paper, a simple printed cross-dipole (PCD) antenna to achieve a right-hand circular polarization (RHCP) at the L/S-band for direction finding (DF) systems is presented. The radiating part of the antenna consists of two printed dipoles that interlock with each other and are mounted orthogonally on a dual-layer printed reflector. To connect the feedlines of the dipole elements to the antenna’s feed network, which is located on the backside of the reflector, a through-hole signal via (THSV) is employed as the signal interconnection instead of the mainstream approach of using coaxial bead conductor. This feeding technique provides a degree of freedom to control the impedance of the signal path between the feedlines and the feed network in the numerical simulation for improved matching conditions. The proposed THSV extending through the dual-layer printed reflector is more reliable, durable, and mechanically robust to stabilize the matching conditions of the fabricated antenna in contrast to the coaxial-based approach that is more susceptible to impedance mismatch due to solder fatigue. Thus, the proposed PCD antenna offers advantages of broadband, flexible impedance matching, and fabrication ease. The antenna exhibits an impedance bandwidth (IBW) of 59% (1.59–2.93 GHz), a 3-dB axial ratio bandwidth (ARBW) of 57% (1.5–2.7 GHz), and a peak of 7.5 dB within the operating frequency band. View Full-Text
Keywords: coaxial bead; cross-dipole antenna; direction finding; dual-layer reflector; right-hand circular polarization; through-hole signal via coaxial bead; cross-dipole antenna; direction finding; dual-layer reflector; right-hand circular polarization; through-hole signal via
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MDPI and ACS Style

Anim, K.; Park, B.; Lee, H.D.; Jang, S.; Kong, S.; Jung, Y.-B. A Simple Printed Cross-Dipole Antenna with Modified Feeding Structure and Dual-Layer Printed Reflector for Direction Finding Systems. Sensors 2021, 21, 5966. https://doi.org/10.3390/s21175966

AMA Style

Anim K, Park B, Lee HD, Jang S, Kong S, Jung Y-B. A Simple Printed Cross-Dipole Antenna with Modified Feeding Structure and Dual-Layer Printed Reflector for Direction Finding Systems. Sensors. 2021; 21(17):5966. https://doi.org/10.3390/s21175966

Chicago/Turabian Style

Anim, Kyei, Bonghyuk Park, Hui D. Lee, Seunghyun Jang, Sunwoo Kong, and Young-Bae Jung. 2021. "A Simple Printed Cross-Dipole Antenna with Modified Feeding Structure and Dual-Layer Printed Reflector for Direction Finding Systems" Sensors 21, no. 17: 5966. https://doi.org/10.3390/s21175966

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