Dual-Band and Dual-polarization Microstrip Antennas Loaded with Split Ring Resonators

Author(s):  
Bo Tao ◽  
Mingyan Jiang ◽  
Lei Zhang ◽  
Shijin Hu
2015 ◽  
Vol 74 ◽  
pp. 659-664 ◽  
Author(s):  
Yan-Peng Jia ◽  
Yong-Liang Zhang ◽  
Xian-Zi Dong ◽  
Mei-Ling Zheng ◽  
Zhen-Sheng Zhao ◽  
...  

2011 ◽  
Vol 59 (8) ◽  
pp. 2758-2765 ◽  
Author(s):  
Óscar Quevedo-Teruel ◽  
Malcolm Ng Mou Kehn ◽  
Eva Rajo-Iglesias

Author(s):  
Sivaranjan Goswami ◽  
Kumaresh Sarmah ◽  
Angana Sarma ◽  
Kandarpa Kumar Sarma ◽  
Sunandan Baruah

Metamaterial-based design of microstrip antennas and other microwave structures have gained enormous popularity worldwide among researchers. The complementary split ring resonator (CSRR) is one of the most commonly used metamaterial structures in this direction. The CSRR structure yields a negative value of its effective permittivity at a narrow band near its resonant frequency. CSRR structure was initially proposed as a notch filtering element in microstrip transmission lines because of the negative permittivity. Later, the CSRR structure found its use in antennas and other microwave applications. The CSRR structure is reported to enhance the performance of a microstrip antenna in terms of its gain and bandwidth. In addition, CSRR structure is also used in the design of dual band antennas and antennas with integrated filters. This chapter deals with the practical design aspects relative to these applications of CSRR structures.


2019 ◽  
Vol 2019 ◽  
pp. 1-11
Author(s):  
Mehdi Hamidkhani ◽  
Rasool Sadeghi ◽  
Mohamadreza Karimi

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.


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