Reconfigurable defected ground structure cell using PIN diodes on Coplanar Waveguide technology
✍ Scribed by Heba B. El-Shaarawy; Fabio Coccetti; Robert Plana; Mostafa El-Said; Essam A. Hashish
- Book ID
- 102520363
- Publisher
- John Wiley and Sons
- Year
- 2010
- Tongue
- English
- Weight
- 430 KB
- Volume
- 52
- Category
- Article
- ISSN
- 0895-2477
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✦ Synopsis
Abstract
This article addresses a novel reconfigurable defected ground structure resonator fabricated on Coplanar Waveguide (CPW) technology. The resonator is endowed with an original design that enables the generation of multiple transmission zeros at arbitrary frequencies. The chosen design is indeed based on a slot defect created on the lateral ground planes of the CPW with the double advantage to allow a simple reconfiguration, by means of surface mounted (or fabricated) components, and a compact solution, by exploiting the transversal dimension of the CPW. Three different states of the diodes configuration are investigated, where in each state multiple transmission zeros are produced in the frequency range from 1 GHz to 11 GHz. Slotline design equations are used to identify the resonant frequencies of the transmission zeros and validated using the magnetic field distribution inside the slot. In this work, the reconfigurability is first proven by means of open and short circuits in specific locations and then replaced by PIN diodes. Simulated and measured results are in good agreement. © 2010 Wiley Periodicals, Inc. Microwave Opt Technol Lett 52: 766–770, 2010; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.25003