Miniature SAW antenna duplexer for 800-MHz portable telephone used in cellular radio systems

Autor:	Mitsutaka Hikita, Kazuhito Kurosawa, Toyoji Tabuchi, Y. Ishida
Rok vydání:	1988
Předmět:	Engineering Radiation business.industry Transmitter Surface acoustic wave Electrical engineering Condensed Matter Physics Duplexer Filter (video) Insertion loss Electrical and Electronic Engineering Transceiver Antenna (radio) business Electronic filter
Zdroj:	IEEE Transactions on Microwave Theory and Techniques. 36:1047-1056
ISSN:	0018-9480
DOI:	10.1109/22.3631
Popis:	A description is given of a low-loss, high-power surface acoustic wave (SAW) filter developed for an antenna duplexer used in an 800-MHz portable telephone transceiver. The ladder-type configuration uses SAW resonators and capacitors between electrode fingers and ground. The device is fabricated on a 20-mm-square LiTaO/sub 3/ chip. This configuration provides insertion loss as low as 1.0-1.2 dB and output power up to 2 W at 800 MHz. Experimental results from a miniature antenna duplexer-module using this SAW filter as a transmitter filter and previously published high-performance SAW filters as receiver filters are also presented and compared. >
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::2da9c880db60dbae9728b4e4c8863be2 https://doi.org/10.1109/22.3631 Zobrazit plný text záznamu