입사각 안정성을 갖는 밀리미터파 대역 주파수 선택적 레이돔설계.

Autor: 조성실․윤대영, 김지형, 윤나내, 오경현, 우대웅, 박용배, 홍익표
Předmět:
Zdroj: Journal of Korean Institute of Electromagnetic Engineering & Science / Han-Guk Jeonjapa Hakoe Nonmunji; May2022, Vol. 33 Issue 5, p340-347, 8p
Abstrakt: In this study, a frequency-selective radome in the millimeter-wave band with excellent incident-angle stability is designed. The hybrid structure comprising the designed radome combines a multilayered composite material, which has a rectangular loop-type FSS (frequency selective surface) structure with frequency-selective transmission characteristics in the millimeter-wave band. It has a low transmission loss of ≤1 dB in the pass band and a high blocking characteristic of ≥10 dB in the X-band for polarization TE (transverse electric). Additionally, the TM (transverse magnetic) modes and incidence angles ranged from 0° to 50°. To confirm the design performance, a hybrid composite structure is fabricated and the transmission characteristics in the millimeter-wave band and X-band are measured using free-space measurement. The results confirm that the normal incident wave has a passband center frequency and stopband center frequency of 0.62 and 13.45 dB, respectively. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index