ESPAR Antenna: an adaptive antenna for mobile terminals and its application to wireless ad hoc networks

Autor:	Takashi Ohira, Bokuji Komiyama, Shinsuke Tanaka
Rok vydání:	2004
Předmět:	Antenna array Microstrip antenna Engineering Directional antenna business.industry Wireless ad hoc network Beam steering Hardware_INTEGRATEDCIRCUITS Electronic engineering Antenna (radio) business Varicap Phase shift module
Zdroj:	SPIE Proceedings.
ISSN:	0277-786X
DOI:	10.1117/12.560664
Popis:	Recent topics on ESPAR (Electronically Steerable Parasitic Array Radiator) antennas, which we have proposed as an adaptive antenna for mobile user terminals, are described. The measurement characteristics of a 2.4 GHz 7-element ESPAR antenna are given along with its design criteria. Experimental work on an ad hoc network with 2.4 GHz ESPAR antennas is now proceeding and preliminary results are given. The design and fabrication of a beam-steerable 60 GHz planar microstrip antenna for the TV receiver of an indoor multi-channel video transmission system are presented as another example of user terminal applications. Beam steering is realized by varactor phase shifters at low cost.
Databáze:	OpenAIRE
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