Broadband VCO using electronically controlled metamaterial transmission line based on varactor-loaded split-ring resonator

2008 ◽  
Vol 50 (4) ◽  
pp. 1078-1082 ◽  
Author(s):  
Jaewon Choi ◽  
Chulhun Seo
2015 ◽  
Vol 8 (7) ◽  
pp. 1045-1050 ◽  
Author(s):  
Indhumathi Kulandhaisamy ◽  
Dinesh Babu Rajendran ◽  
Malathi Kanagasabai ◽  
Balaji Moorthy ◽  
Jithila V. George ◽  
...  

Phase shifters are indispensable microwave components. In this paper, a dual-frequency, passive, analog, and reciprocal phase shifter is proposed, deploying the phase-delay characteristics of complementary split-ring resonator (CSRR). A transmission line is loaded with a pair of CSRR in the ground plane and the phase variations are compared with an ideal transmission line. The proposed phase shifter operates in the industrial, scientific and medical (ISM) and wireless local area network (WLAN) bands, providing a phase of 180° at 2.4 GHz and 90° at 5.4 GHz for beam steering applications.


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