Premium
A compact reconfigurable ultra‐wideband G‐shaped printed antenna with band‐notched characteristic
Author(s) -
Toktas Abdurrahim,
Yerlikaya Mehmet
Publication year - 2019
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.31516
Subject(s) - pin diode , monopole antenna , patch antenna , antenna (radio) , omnidirectional antenna , microstrip antenna , microstrip , radiator (engine cooling) , coaxial antenna , dipole antenna , reconfigurable antenna , electrical engineering , optics , physics , engineering , diode
A compact UWB G‐shaped printed monopole antenna with reconfigurable band‐notched characteristic is presented. The antenna design having a low profile of 8 × 27.5 mm 2 consists of a G‐shaped radiating element size of 8 × 8 mm 2 fed by a microstrip transmission line with a matching line and a defected ground structure. In order to achieve reconfigurable characteristic, a pin diode is inserted between the poles of G‐shaped radiator. When the pin diode is at ON‐state, G‐shaped patch behaves like a ring radiator and the antenna thus operates at whole UWB frequency. On the other hand; when the pin diode is at OFF‐state, the antenna has a band‐notched characteristic corresponds to C‐band and WIMAX band spectrum. The antenna design is parametrically investigated and the proposed design is verified by a prototype. From the measured results, the antenna has switchable characteristic between whole UWB spectrum of 2.8‐12.6 GHz at ON‐state and stopped band of 3.5‐4.95 GHz at OFF‐state. Therefore, the proposed antenna excels in terms of geometry's simplicity, compactness, near omnidirectional pattern, high efficiency as well as band‐notched configurability.