Title :
A novel wide band FSS structure based on the double-layered hexagonal unit
Author :
Wan Chen ; Jiahui Fu ; Kuang Zhang ; Qun Wu
Author_Institution :
Sch. of Electron. & Inf. Eng., Harbin Inst. of Technol., Harbin, China
Abstract :
In this paper, a novel wide-band frequency selective surface (FSS) based on double-layered hexagonal units is described. The proposed FSS has better wideband performance of 23.6% compared with previous designs. The operating frequency at 12.5 GHz for the application of radome in X-band is obtained by optimizing the coupling of the two layers respectively. In order to improve the broadband performance, an approach is presented and analyzed by controlling the magnetic field inside the structure and the bandwidth is expanded by introducing straight metal strips near the hexagonal loops. To validate the proposed concept, the final design is fabricated, and measured results are also presented and discussed.
Keywords :
broadband antennas; frequency selective surfaces; magnetic fields; microwave antennas; X-band; broadband performance; double-layered hexagonal unit; frequency 12.5 GHz; frequency selective surfaces; hexagonal loops; magnetic field; metal strips; radome; wide band FSS structure; wide-band frequency selective surface; wideband performance; Antenna measurements; Bandwidth; Broadband antennas; Broadband communication; Frequency selective surfaces; Metals; Receiving antennas; CRLH; circularly-polarized; leaky-wave antenna; lumped element;
Conference_Titel :
Antennas and Propagation (APCAP), 2014 3rd Asia-Pacific Conference on
Conference_Location :
Harbin
Print_ISBN :
978-1-4799-4355-5
DOI :
10.1109/APCAP.2014.6992697
