Dual-band rat race hybrid coupler implemented through artificial lines based on complementary split ring resonators

2009 ◽  
Author(s):  
Gerard Siso ◽  
Jordi Bonache ◽  
Ferran Martin
Keyword(s):  
Ring Resonators ◽  
Dual Band ◽  
Split Ring ◽  
Split Ring Resonators ◽  
Hybrid Coupler

scholarly journals Dual-Band/Dual-Mode Rat-Race/Branch-Line Coupler Using Split Ring Resonators

Electronics ◽  
2021 ◽  
Vol 10 (15) ◽  
pp. 1812
Author(s):  
Mohammad Saeid Ghaffarian ◽  
Gholamreza Moradi ◽  
Somayyeh Khajehpour ◽  
Mohammad Mahdi Honari ◽  
Rashid Mirzavand
Keyword(s):  
Transmission Lines ◽  
Low Cost ◽  
Equivalent Circuit Model ◽  
Ring Resonators ◽  
Dual Band ◽  
Dual Mode ◽  
Split Ring ◽  
Split Ring Resonators ◽  
Branch Line ◽  
Hybrid Coupler

A novel dual-band/dual-mode compact hybrid coupler which acts as a dual-band branch-line coupler at the lower band and as a rat-race coupler at the higher band is presented in this paper. One of the most interesting features of the proposed structure is that outputs of the proposed coupler in each mode of operation are on the same side. This unique design is implemented using artificial transmission lines (ATLs) based on open split ring resonators (OSRR). The low-cost miniaturized coupler could be operated as a dual-band 90° branch-line coupler at 3.3 and 3.85 GHz and 180° rat-race coupler at 5.3 GHz. The proposed coupler could be utilized in the antenna array feeding circuit to form the antenna beam. The structure’s analytical circuit design based on its equivalent circuit model is provided and verified by measurement results.

Tunable dual-band infrared chiral metamaterials based on double-layered asymmetric U-shape split ring resonators

2015 ◽  
Vol 74 ◽  
pp. 659-664 ◽  
Author(s):  
Yan-Peng Jia ◽  
Yong-Liang Zhang ◽  
Xian-Zi Dong ◽  
Mei-Ling Zheng ◽  
Zhen-Sheng Zhao ◽  
...  
Keyword(s):  
Ring Resonators ◽  
Dual Band ◽  
Split Ring ◽  
Split Ring Resonators ◽  
Chiral Metamaterials

Dual-Band Patch Antennas Based on Short-Circuited Split Ring Resonators

2011 ◽  
Vol 59 (8) ◽  
pp. 2758-2765 ◽  
Author(s):  
Óscar Quevedo-Teruel ◽  
Malcolm Ng Mou Kehn ◽  
Eva Rajo-Iglesias
Keyword(s):  
Ring Resonators ◽  
Dual Band ◽  
Patch Antennas ◽  
Split Ring ◽  
Split Ring Resonators

scholarly journals Dual-Band High Q-Factor Complementary Split-Ring Resonators Using Substrate Integrated Waveguide Method and Their Applications

2019 ◽  
Vol 2019 ◽  
pp. 1-11
Author(s):  
Mehdi Hamidkhani ◽  
Rasool Sadeghi ◽  
Mohamadreza Karimi
Keyword(s):  
Phase Noise ◽  
Group Delay ◽  
Cavity Resonator ◽  
Practical Method ◽  
Ring Resonators ◽  
Dual Band ◽  
High Group ◽  
Split Ring ◽  
Split Ring Resonators ◽  
Low Phase Noise

In modern microwave telecommunication systems, especially in low phase noise oscillators, there is a need for resonators with low insertion losses and high Q-factor. More specifically, it is of high interest to design resonators with high group delay. In this paper, three novel dual-band complementary split-ring resonators (CSRRs) featuring high group delay etched on the waveguide surface by using substrate integrated waveguides are investigated and proposed. They are designed for a frequency range of 4.5–5.5 GHz. Group delay rates for the first, second, and third resonators were approximated as much as 23 ns, 293 ns, and 90 ns, respectively. We also proposed a new practical method to develop a wide tuning range SIW CSRR cavity resonator with a small tuning voltage in the second resonator, which leads to about 19% and 1% of tuning frequency band in the first and second bands, respectively. Finally, some of their applications in the design of filter, diplexer, and low phase noise oscillator will be investigated.

Sign in / Sign up

Export Citation Format

Share Document