RF-related impairments for microwave digital radios

Author

Shen, Ying

Author_Institution

Microwave Commun. Div., HARRIS Corp., Morrisville, NC, USA

Volume

2

fYear

2005

fDate

4-6 Oct. 2005

Abstract

A single low-cost universal SDH/PDH common radio platform is developed to cover the frequency range from 6GHz up to 40GHz. The radio is designed for independent of modulation, capacity and bandwidth. The single radio platform supports modulation from QPSK up to 256QAM, capacity from 2E1/T1 up to OC3/STM1, and bandwidth from 1.75MHz up to 56MHz. This paper concentrates on design consideration for general RF related impairments versus various QAM modulations, including co-channel interference degradation, non-linearity degradation, transmitter noise leakage degradation, RF return loss degradation and overall phase noise degradation, etc.

Keywords

cellular radio; cochannel interference; digital radio; quadrature amplitude modulation; radio links; 1.75 to 56 MHz; 6 to 40 GHz; QAM modulations; QPSK; RF return loss degradation; RF-related impairments; cellular backhaul network; co-channel interference; microwave digital radios; nonlinearity degradation; overall phase noise degradation; point-to-point radios; transmitter noise leakage degradation; universal SDH/PDH common radio platform; Bandwidth; Degradation; Digital communication; Interchannel interference; Phase modulation; Phase noise; Quadrature amplitude modulation; Quadrature phase shift keying; Radio frequency; Synchronous digital hierarchy;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Conference, 2005 European

Print_ISBN

2-9600551-2-8

Type

conf

DOI

10.1109/EUMC.2005.1610189

Filename

1610189