Direct downconversion active antennas for modulation and demodulation

Author

Ma, G. ; Hall, P.S. ; Gardner, P. ; Hajizn, M.

Author_Institution

Dept. of Electron. & Electr. Eng., Birmingham Univ., UK

fYear

2000

fDate

2000

Firstpage

261

Lastpage

264

Abstract

In this paper, two active antennas with modulation and demodulation functions are introduced. A patch antenna integrated with two Schottky diodes is implemented to fulfil single sideband modulation and I&Q demodulation. A variation of this configuration can carry out double sideband modulation with carrier suppression and homodyne detection. Moreover, some parameters of the active antennas, such as conversion loss and radiation pattern are measured. The active antennas have potential use for direct-conversion radio transceivers in digital communication

Keywords

active antennas; antenna radiation patterns; demodulation; homodyne detection; microstrip antennas; transceivers; I&Q demodulation; Schottky diodes; carrier suppression; conversion loss; demodulation; digital communication; direct downconversion active antennas; double sideband modulation; homodyne detection; modulation; patch antenna; radiation pattern; radio transceivers; single sideband modulation; Antenna measurements; Antenna radiation patterns; Band pass filters; Baseband; Demodulation; Energy consumption; Frequency conversion; Patch antennas; Radio frequency; Schottky diodes;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave and Millimeter Wave Technology, 2000, 2nd International Conference on. ICMMT 2000

Conference_Location

Beijing

Print_ISBN

0-7803-5743-4

Type

conf

DOI

10.1109/ICMMT.2000.895671

Filename

895671