Title :
An experimental 5.7 GHz SSB communications system
Author :
Campbell, Richard L.
Author_Institution :
Dept. of Electr. Eng., Michigan Technol. Univ., Houghton, MI
fDate :
2/1/1996 12:00:00 AM
Abstract :
A SSB communications system, for use in the amateur 5.7 GHz band, is described. This system as several unique features, including the successful use of microstrip circuitry printed on low-cost FR-4 substrate, a microwave complex modulator for SSB generation, and a VHF complex demodulator for SSB reception. There are no conventional narrow-band intermediate-frequency stages. The system power output is -6 dBm PEP, and the receive system-noise figure is 11 dB. An antenna system is described that provides approximately 23 dBi gain, which is appropriate for line-of-sight communication over 16 km paths
Keywords :
VHF circuits; demodulators; microstrip circuits; microwave antennas; microwave links; microwave receivers; modulators; radio receivers; radio transmitters; 11 dB; 16 km; 23 dB; 5.7 GHz; 5.7 GHz SSB communications system; SHF; SSB generation; SSB reception; VHF complex demodulator; antenna system; line-of-sight communication; low-cost FR-4 substrate; microstrip circuitry; microwave complex modulator; receive system-noise figure; system power output; Amplitude modulation; Communication systems; Costs; Frequency conversion; Microwave antennas; Microwave circuits; Radio transmitters; Receiving antennas; Transmitting antennas; VHF circuits;
Journal_Title :
Antennas and Propagation Magazine, IEEE
