Open AccessCPW‐Fed Arbitrary Frequency‐Switchable Antenna Using CRLH Transmission Line
Author(s) -
Lim Inseop,
Lim Sungjoon
Publication year - 2014
Publication title -
etri journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.295
H-Index - 46
eISSN - 2233-7326
pISSN - 1225-6463
DOI - 10.4218/etrij.14.0213.0027
Subject(s) - stub (electronics) , transmission line , inductor , electric power transmission , diode , feed line , electrical engineering , metamaterial , shunt (medical) , pin diode , patch antenna , resonance (particle physics) , optoelectronics , chip , engineering , physics , antenna (radio) , voltage , medicine , particle physics , cardiology
A novel frequency‐switchable antenna that uses PIN diodes and a composite right‐ and left‐handed transmission line (CRLH TL) is proposed. The CRLH TL provides multi‐order resonance, including a zeroth‐order resonance (ZOR), and its shunt stub determines the ZOR frequency. Thus, the resonant frequency is arbitrarily chosen by lumped chip inductors on the shunt stub. Two prototypes are designed using different chip inductors while maintaining the antenna geometries. Antenna #1 can switch the resonant frequency from 1.8 GHz to 2.3 GHz. Antenna #2 can switch its resonance from 0.9 GHz to 2.3 GHz.