招待講演

海外講師をお招きして招待講演を開催いたします。（※聴講は大会参加登録が必要です）

■日　時：9月17日(木)　15:35～16:05

■会　場：第8会場　[2階]22号教室　　（論文番号　08-1P-05）

■開催セッション

International Session (1) Electromagnetic Waves and Antennas
国際セッション(1)（電磁波・アンテナ）

■共　催：IEEE Antennas and Propagation Society Fukuoka Chapter

■講　師：Jae-Young Chung
　　　　（Seoul Nat'l Univ. of Science & Technology）

■講演概要
In this talk, a compact frequency-selective rasorber (FSR) that achieves broadband absorption at X-band while maintaining low-loss transmission at Ku-band will be presented.

The proposed unit cell consists of a resistive layer incorporating fourfold-symmetric cross-bowtie and lumped resistors and a complementary annular ring transmissive layer, enabling independent control of absorption and transmission responses.

Experimental measurements demonstrate a broadband absorption at X-band with greater than 80% absorptivity, alongside a well-defined transmission window at Ku-band with an insertion loss less than 1 dB. The structure exhibits robust angular stability, maintaining consistent absorption and transmission performance up to ±45° for both TE and TM polarizations.

These characteristics make the proposed FSR a strong candidate for low radar-cross-section (RCS) radome applications requiring simultaneous wideband electromagnetic absorption and selective signal transmission.