A novel, sub-harmonic pumping direct conversion receiver with high instantaneous dynamic range

Author

Shimozawa, M. ; Kawakami, Kenji ; Itoh, K. ; Iida, A. ; Ishida, O.

Author_Institution

Inf. Technol. R&D Center, Mitsubishi Electr. Corp., Kanagawa, Japan

Volume

2

fYear

1996

fDate

17-21 June 1996

Firstpage

819

Abstract

A novel sub-harmonic pumping direct conversion receiver (SHP-DCR) employing antiparallel diode pair (APDP) is proposed for high instantaneous dynamic range receivers used in mobile communications. The proposed SHP-DCR can suppress even harmonic mixing products, such as second order intermodulation (IM2) and LO noise that interfere a desired baseband signal. Moreover, the design condition of load resistance is indicated by analytical and experimental approaches for improving diode mixer disadvantages of lower conversion gain and higher LO power. A developed L-band SHP-DCR without a low noise amplifier achieves NF of 18.5 dB, IP3 at input port of 3 dBm and IM2 is below -90 dB in the actual input range.

Keywords

intermodulation; land mobile radio; noise; radio receivers; 18.5 dB; L-band SHP-DCR; LO noise; LO power; antiparallel diode pair; baseband signal; conversion gain; design; diode mixer; harmonic mixing products; instantaneous dynamic range; load resistance; mobile communications; second order intermodulation; sub-harmonic pumping direct conversion receiver; Baseband; Diodes; Dynamic range; Mobile communication; Noise figure; Power amplifiers; Power dividers; RF signals; Radio frequency; Radiofrequency amplifiers;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Symposium Digest, 1996., IEEE MTT-S International

Conference_Location

San Francisco, CA, USA

ISSN

0149-645X

Print_ISBN

0-7803-3246-6

Type

conf

DOI

10.1109/MWSYM.1996.511063

Filename

511063