Size Miniaturized Rat-Race Coupler Using Open Complementary Split Ring Resonator

作者：Subramanian Karthikeyan Sholampettai^*; Kshetrimayum Rakhesh Singh

来源：IEICE - Transactions on Electronics, 2011, E94C(10): 1601-1604.

DOI：10.1587/transele.E94.C.1601

• open complementary split ring resonator (OCSRR)
• rat-race coupler
• harmonic suppression

In this paper, a rat-race hybrid coupler based on an open complementary split ring resonator (OCSRR) is presented. By embedding the OCSRR in the microstrip transmission line, slow-wave effect is introduced to achieve size reduction. The proposed rat-race coupler size is 37% smaller than the conventional rat-race coupler. Besides, the proposed coupler provides better third harmonic suppression up to 35 dB. The simulated results are compared with the measured data and good agreement is reported.

• 出版日期2011-10