Wideband Quarter Wave Transformer Based on Defected Ground and Split Ring Resonator Structures

Date

2018-11-02

Author

Yuksek, Yahya
Nesimoglu, Tayfun

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

236
views

0
downloads

This article examines a wideband impedance transformer based on a split ring resonator and defected ground structures. The transformer was designed as a 4 section binomial one and it provides a transformation from 50 SI to 100 Omega. Reversed "Z" shaped defects are formed on the ground plane of the design in order to increase the bandwidth. The design has been simulated using a 3D electromagnetic simulator which utilizes finite integration technique. Three distinct resonances are exhibited at specific frequency spots as proofs of the concept of impedance matching. Theoretical and simulated results are in a good agreement with each other and the proposed design might be tailored in many microwave circuits and antenna applications.

Subject Keywords

Defected ground, Split ring resonator, Broadband, Quarter wave transformer

URI

https://hdl.handle.net/11511/65983

Collections

Engineering, Conference / Seminar

Suggestions

OpenMETU
Core

Frequency Tunable Metamaterial Designs Using Near Field Coupled SRR Structures in the Terahertz Region Ekmekci, Evren; Strikwerda, A. C.; Fan, K.; Keiser, G.; Zhang, Xin; Turhan-Sayan, G.; Averitt, Richard D. (2011-05-06) We present frequency tunable metamaterials at terahertz frequencies using broadside-coupled split ring resonators. Frequency tuning, arising from changes in near field coupling, is obtained by in-plane displacement between the SRR layers. A maximum frequency shift occurs for displacement of half a unit cell resulting in a shift of 663 GHz (51% of f(0)).
High Performance Harmonic Isolation By Means of The Single-phase Series Active Filter Employing The Waveform Reconstruction Method Senturk, Osman S.; Hava, Ahmet Masum (2009-09-24) This paper proposes the Waveform Reconstruction Method (WRM), which is utilized in the single-phase Series Active Filter's (SAF's) control algorithm, in order to extract the load harmonic voltage component of voltage harmonic type single-phase diode rectifier loads. Employing WRM and the line current sampling delay reduction method (SDRM), a single-phase SAF compensated system provides higher harmonic isolation performance and higher stability margins compared to the system using conventional synchronous re...
Wideband omnidirectional and sector coverage antenna arrays for base stations Alatan, Lale (2018-01-01) By using parallel strip line fed printed dipole antennas as array elements, an omnidirectional antenna array and a wide angle sector coverage array operating in octave band are designed. A maximum deviation of ±1.25 dB from the omnidirectional pattern is achieved for the omnidirectional array, and the average gain of the antenna was measured as being 5 dB in the 1.35–2.7GHz band. For the sector coverage array, a special reflector design is utilized to maintain a half power beam width of around 115◦ with a s...
Investigation of microwave metamaterial based on H-shaped resonator in a waveguide configuration and its sensor and absorber applications Sabah, Cumali; Taygur, Mehmet Mert; ZORAL, EMİNE YEŞİM (2015-04-13) A microwave metamaterial (MTM) based on H-shaped resonator in a waveguide configuration is introduced and investigated both numerically and experimentally for X-band frequencies. The proposed model is designed and fabricated on both sides of the substrate and exhibits strong magnetic resonance at around 10.5GHz. Additionally, it has very simple design which improves and simplifies the fabrication process. Besides, only one single slab is used in the simulation and experiment which provides a reduction in th...
Frequency tunable microstrip patch antenna using RF MEMS technology Erdıl, Emre; Topallı, Kagan; Unlu, Mehmet; Aydın Çivi, Hatice Özlem; Akın, Tayfun (2007-04-01) A novel reconfigurable microstrip patch antenna is presented that is monolithically integrated with RF microelectromechanical systems (MEMS) capacitors for tuning the resonant frequency. Reconfigurability of the operating frequency of the microstrip patch antenna is achieved by loading it with a coplanar waveguide (CPW) stub on which variable MEMS capacitors are placed periodically. MEMS capacitors are implemented with surface micromachining technology, where a 1-mu m thick aluminum structural layer is plac...

Citation Formats

Y. Yuksek and T. Nesimoglu, “Wideband Quarter Wave Transformer Based on Defected Ground and Split Ring Resonator Structures,” 2018, p. 183, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/65983.