High-Gain Waveguide-Fed Circularly Polarized Spidron Fractal Aperture Antenna
- Authors
- Trinh-Van, Son; Thi, Thuy Nguyen; Yang, Youngoo; Lee, Kang-Yoon; Jung, Kyung Young; Hwang, Keum Cheol
- Issue Date
- Feb-2019
- Publisher
- MDPI
- Keywords
- circular polarization; high gain; Spidron fractal structure; superstrate; waveguide-fed aperture antenna
- Citation
- APPLIED SCIENCES-BASEL, v.9, no.4
- Indexed
- SCIE
SCOPUS
- Journal Title
- APPLIED SCIENCES-BASEL
- Volume
- 9
- Number
- 4
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/15073
- DOI
- 10.3390/app9040691
- ISSN
- 2076-3417
- Abstract
- A high-gain rectangular waveguide-fed aperture antenna that uses a Spidron fractal structure to produce circular polarization is proposed. The antenna consists of a Spidron fractal aperture etched onto the ground plane of a dielectric substrate that is directly excited by a WR (Waveguide Rectangular)-90 waveguide-to-coax adapter. A superstrate was implemented at an appropriate distance above the antenna to enhance the broadside gain significantly. An antenna prototype was fabricated and tested to validate the design. The measured impedance bandwidth for vertical bar S-11 vertical bar <= -10 dB is 9.89-11.58 GHz (15.74%). The corresponding measured 3 dB axial ratio (AR) bandwidth is 10.68-11.00 GHz (2.95%), and within the measured 3 dB AR bandwidth, a maximum realized gain of 9.59 dBic is achieved. The radiation patterns of the proposed antenna are presented and discussed.
- Files in This Item
-
- Appears in
Collections - 서울 공과대학 > 서울 융합전자공학부 > 1. Journal Articles
![qrcode](https://api.qrserver.com/v1/create-qr-code/?size=55x55&data=https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/15073)
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.