Continuously tunable SIW phase shifter based on the buried varactors

IEICE Electronics Express

Haiyan JIN²  Tao Yang¹  Hao Peng¹  Peng Jiang¹ 

[1] School of Electronic Engineering, University of Electronic Science and Technology of China;School of Communication and Information Engineering, University of Electronic Science and Technology of China

关键词: SIW;    phase shifter;    buried varactors;   

DOI  :  10.1587/elex.12.20150165

学科分类：电子、光学、磁材料

来源: Denshi Jouhou Tsuushin Gakkai

【 摘 要 】

References(11)Cited-By(1)A continuously tunable substrate integrated waveguide (SIW) phase shifter based on the buried varactors is proposed. A number of varactors buried within the substrate are introduced into the SIW section. Varactor diode is a nonlinear device, of which the capacitance varies with applied voltage of an exponent factor negative fractional value. The distribution of electric and magnetic fields can be changed with varied capacitance, which results in the phase-shifted. As one example, a phase shifter with four varactors is designed and implemented. Simulation and experimental results are in good agreements. The measured results show a return loss mostly better than 10 dB and an insertion loss less than 2.3 dB within a frequency range from 1.6 to 2.6 GHz (about 47.6% relative bandwidth). The maximum phase range is about 30° at the center frequency.

【 授权许可】

Unknown