Title :
Microwave transversal six-band bandpass planar filter for multi-standard wireless applications
Author :
Gómez-García, Roberto ; Munoz-Ferreras, José-María ; Sánchez-Renedo, Manuel
Author_Institution :
Dept. Signal Theor. & Commun., Univ. of Alcala, Alcalá de Henares, Spain
Abstract :
An approach to design microwave multi-band bandpass planar filters with an arbitrary number of passbands is proposed. It is based on the generalization of a previously-reported transversal filter structure to synthesize multi-band responses. This filter topology, by means of signal-interference techniques, allows frequency-selective transfer functions with multiple passbands separated by inter-band transmission zeros to be derived. Analytical equations and guidelines for the theoretical design of the described multi-band bandpass filter configuration are given. Moreover, its practical viability is verified through the construction and testing of a six-band bandpass microstrip prototype. To the authors´ knowledge, no other filter solution with such a plurality of passbands has been experimentally proven to date.
Keywords :
band-pass filters; filtering theory; interference suppression; microstrip filters; microwave filters; software radio; transversal filters; ultra wideband communication; analytical equation; filter topology; frequency-selective transfer function; interband transmission zero; microwave multiband bandpass planar filter; multistandard wireless application; signal-interference technique; six-band bandpass microstrip prototype; software defined radio; transversal filter structure; Microstrip; Microwave circuits; Microwave filters; Passband; Prototypes; Bandpass filter; microstrip filter; multi-band filter; signal interference; software defined radio; transmission zero; transversal filter; ultra wideband;
Conference_Titel :
Radio and Wireless Symposium (RWS), 2011 IEEE
Conference_Location :
Phoenix, AZ
Print_ISBN :
978-1-4244-7687-9
DOI :
10.1109/RWS.2011.5727976