Interference to digital broadband communications and spread spectrum communications

Author

Rhodes, Charles W.

Author_Institution

Consulting Engineer

Volume

58

Issue

1

fYear

2012

fDate

2/1/2012 12:00:00 AM

Firstpage

15

Lastpage

22

Abstract

Interference from DTV signals to cellular 700 MHz wireless phones may limit their acceptance by the public. Such interference has been reported to the FCC. The interference mechanism involved is 3^rd order non-linearity of the analog front end of cellular phones. Interference to GPS signal reception has been documented by a Technical Working Group. The author believes that the mechanism is also 3^rd order non-linearity of the analog front end of GPS receivers. In both situations, RF selectivity and mixer linearity must be improved.

Keywords

Global Positioning System; broadband networks; cellular radio; digital television; radio receivers; radiofrequency interference; spread spectrum communication; DTV signals; GPS receivers; GPS signal reception; cellular phones; cellular wireless phones; digital broadband communications; frequency 700 MHz; interference mechanism; spread spectrum communications; third order nonlinearity of the analog front end; Broadband communication; Digital TV; Interference; Noise; Radio frequency; Receivers;

fLanguage

English

Journal_Title

Consumer Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0098-3063

Type

jour

DOI

10.1109/TCE.2012.6170050

Filename

6170050