Development of a commercial, 38 GHz, communication

Author

Gulloch, W. ; Politi, R. ; Nobili, M. ; Amati, M. ; Colombo, G.

Author_Institution

Alcatel Telettra, Vimercate, Italy

fYear

1993

Firstpage

681

Abstract

Work carried out in the development of commercial radio links at millimeter (MM) wave frequencies is presented. System aspects are discussed, and results are presented for the MM-wave components which have been developed. A modular common system approach has been used, thus enabling the economical reuse of most of the lower-frequency system functions. The modulation options which have been considered and their effect on the MM-wave components are discussed. From this analysis a low-cost system approach is presented based on the use of MMICs (monolithic microwave integrated circuits) and broadband RF components. Offset 4 QAM (quadrature amplitude modulation) was used in order to provide a good compromise between amplifier linearity and spectral efficiency. This system design has been implemented at 38 GHz, and various system results are presented.<>

Keywords

amplitude modulation; digital radio systems; microwave links; 38 GHz; BER; MM-wave components; MMICs; broadband RF components; commercial link; commercial radio links; low-cost system; millimetre-wave link EHF; modular common system; monolithic microwave integrated circuits; offset 4 QAM; quadrature amplitude modulation; Broadband amplifiers; Linearity; MMICs; Microwave integrated circuits; Monolithic integrated circuits; Quadrature amplitude modulation; Radio frequency; Radio link; Radiofrequency amplifiers; Radiofrequency integrated circuits;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Symposium Digest, 1993., IEEE MTT-S International

Conference_Location

Atlanta, GA, USA

ISSN

0149-645X

Print_ISBN

0-7803-1209-0

Type

conf

DOI

10.1109/MWSYM.1993.276999

Filename

276999