A new radio receiver system for personal communications

Author

Okanobu, Taiwa ; Yamazaki, Daisuke ; Nishi, Chikara

Author_Institution

Sony Corp., Tokyo, Japan

Volume

41

Issue

3

fYear

1995

fDate

8/1/1995 12:00:00 AM

Firstpage

795

Lastpage

803

Abstract

A new radio receiver system for personal communications is described. This technology incorporates direct conversion into an integrated circuit in such a way that the need for discrete IF filters is avoided. It also employs a second IF functional circuit that contains a carrier leak detector and an adjustment-free system. The carrier leak detector suppresses the level of unwanted carrier leak and the adjustment-free system automatically compensates for any variation in circuit response that corrupts the performance of the receiver. The resulting design is particularly suitable for use in wireless devices such as pagers and cordless telephones

Keywords

Butterworth filters; band-pass filters; cordless telephone systems; digital filters; digital integrated circuits; frequency convertors; interference suppression; paging communication; personal communication networks; radio receivers; radiofrequency interference; 46 to 49 MHz; IF functional circuit; adjustment-free system; carrier leak detector; circuit response; cordless telephones; integrated circuit; pagers; performance; personal communications; radio receiver system; unwanted carrier leak; Detectors; Filters; Frequency modulation; Integrated circuit technology; Leak detection; Radio frequency; Receivers; Space technology; Telephony; Wireless communication;

fLanguage

English

Journal_Title

Consumer Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0098-3063

Type

jour

DOI

10.1109/30.468082

Filename

468082