A new active RF phase shifter using variable gain, drain voltage controlled PHEMTs: A 2.4-GHz ISM implementation

Mitilineos, SA; Mitropoulos, GK; Capsalis, CN

dc.contributor.author	Mitilineos, SA	en
dc.contributor.author	Mitropoulos, GK	en
dc.contributor.author	Capsalis, CN	en
dc.date.accessioned	2014-03-01T01:21:44Z
dc.date.available	2014-03-01T01:21:44Z
dc.date.issued	2005	en
dc.identifier.issn	1531-1309	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/16351
dc.subject	Vector summing	en
dc.subject	Voltage controlled amplifier	en
dc.subject	Voltage controlled phase shifter	en
dc.subject.classification	Engineering, Electrical & Electronic	en
dc.subject.other	Electric inductors	en
dc.subject.other	Electric potential	en
dc.subject.other	Field effect transistors	en
dc.subject.other	Gain control	en
dc.subject.other	High electron mobility transistors	en
dc.subject.other	Power amplifiers	en
dc.subject.other	Signal encoding	en
dc.subject.other	Vectors	en
dc.subject.other	Variable gain amplifiers (VGA)	en
dc.subject.other	Vector summing	en
dc.subject.other	Voltage controlled amplifiers	en
dc.subject.other	Voltage controlled phase shifters	en
dc.subject.other	Phase shifters	en
dc.title	A new active RF phase shifter using variable gain, drain voltage controlled PHEMTs: A 2.4-GHz ISM implementation	en
heal.type	journalArticle	en
heal.identifier.primary	10.1109/LMWC.2005.851555	en
heal.identifier.secondary	http://dx.doi.org/10.1109/LMWC.2005.851555	en
heal.language	English	en
heal.publicationDate	2005	en
heal.abstract	Phase shifters operating at RF bands are an essential component of phased and adaptive arrays circuits. In this letter, an active phase shifter is proposed, using vector summing of an in-phase and a quad-phase replica of the incoming signal. The proposed scheme was designed and implemented using a Wilkinson power combiner/divider, a branch line hybrid coupler and single-stage variable gain amplifiers (VGAs), achieving continuous phase shift within the range of [0 degrees, 90 degrees]. The manufactured prototype is suitable for WLAN operations in the 2.4-GHz ISM band. Details of the phase shifter design and experimental results are presented.	en
heal.publisher	IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC	en
heal.journalName	IEEE Microwave and Wireless Components Letters	en
dc.identifier.doi	10.1109/LMWC.2005.851555	en
dc.identifier.isi	ISI:000230217800004	en
dc.identifier.volume	15	en
dc.identifier.issue	7	en
dc.identifier.spage	454	en
dc.identifier.epage	456	en