Title :
Decade-bandwidth planar balun using CPW-to-slotline transition for UHF applications
Author :
Hong, Young-Pyo ; Kimball, Donald F. ; Yook, Jong-Gwan ; Larson, Lawrence E.
Author_Institution :
Univ. of California, San Diego, La Jolla, CA, USA
fDate :
Sept. 29 2009-Oct. 1 2009
Abstract :
This paper presents an improved broadband balun using a coplanar-waveguide (CPW)-to-slotline field transformation. It operates at very wide frequency, and is of compact size since it does not depend on a resonant structure. The measured results show a passband of 200 MHz to 2 GHz, insertion loss less than 0.75 dB and a size of 20 mm × 14 mm. The amplitude imbalance is approximately 0.3 dB and the phase imbalance is less than 6° over the entire operation range.
Keywords :
UHF devices; baluns; coplanar waveguide components; slot line components; waveguide transitions; CPW-to-slotline transition; UHF applications; amplitude imbalance; broadband balun; coplanar-waveguide-to-slotline field transformation; decade-bandwidth planar balun; frequency 200 MHz to 2 GHz; insertion loss; phase imbalance; Bandwidth; Broadband amplifiers; Broadband antennas; Coaxial components; Coplanar waveguides; Ferrites; Frequency estimation; Impedance matching; Insertion loss; Slotline;
Conference_Titel :
Microwave Conference, 2009. EuMC 2009. European
Conference_Location :
Rome
Print_ISBN :
978-1-4244-4748-0
