Title :
High rejection planar diplexer on liquid crystal polymer substrates using oversizing techniques
Author :
Manchec, Alexandre ; Bairavasubramanian, Ramanan ; Quendo, Cedric ; Pinel, Stephane ; Rius, Eric ; Person, Christian ; Favennec, Jean Francois ; Papapolymerou, John ; Laskar, Joy
Author_Institution :
LEST, UMR CNRS, Brest, France
Abstract :
An original planar dual behavior resonator (DBR) diplexer operating at 18 GHz is discussed in this paper. The effort lies in the implementation of oversizing synthesis techniques on a low-cost high-performance liquid crystal polymer (LCP) substrate for accessing to high isolation level between adjacent frequency bands. Artificial high Q factor structures can be reached using oversized resonators, while keeping the same technological parameters reduced overall dimensions. Full wave simulations and measurements of the scattering parameters are presented.
Keywords :
S-parameters; liquid crystal polymers; microwave devices; resonators; substrates; 18 GHz; artificial high Q factor structures; high rejection planar diplexer; liquid crystal polymer substrates; oversized resonators; oversizing synthesis techniques; planar dual behavior resonator diplexer; scattering parameter full wave simulations; scattering parameter measurements; Dielectric losses; Distributed Bragg reflectors; Filtering theory; Filters; Frequency; Hafnium; Isolation technology; Liquid crystal polymers; Millimeter wave technology; Topology;
Conference_Titel :
Microwave Conference, 2005 European
Print_ISBN :
2-9600551-2-8
DOI :
10.1109/EUMC.2005.1608803
