Path: utzoo!utgpu!jarvis.csri.toronto.edu!rutgers!bellcore!texbell!vector!telecom-gateway From: brian@ucsd.edu (Brian Kantor) Newsgroups: comp.dcom.telecom Subject: Re: Cellular Phone Antenna Question Message-ID: Date: 17 Oct 89 20:35:54 GMT Sender: news@vector.Dallas.TX.US Reply-To: Brian Kantor Organization: UCSD Network Operations Lines: 21 Approved: telecom-request@vector.dallas.tx.us X-Submissions-To: telecom@eecs.nwu.edu X-Administrivia-To: telecom-request@vector.dallas.tx.us X-TELECOM-Digest: volume 9, issue 458, message 7 of 10 In article folta@tove.umd.edu.UUCP (Wayne Folta) writes: >X-TELECOM-Digest: volume 9, issue 456, message 4 of 7 >Can anyone tell me about cellular phone antennas? Why the little >curly part of the antenna (does it have something to do with >horizontal v. vertical polarization?)? A non-technical explanation: The cellular antenna is really two vertically-polarized antennas of approximately 1/2 wavelength, and the curly part can be viewed as a delay line to cause the two sections to work in phase. Thus the antenna has an effective "gain" (i.e., works better) than a simple antenna. I have a similar antenna for my ham radio equipment, except that as it's for a frequency that is about half that of the cell-phone band, my antenna is about twice the size. - Brian