Antenna tester

Details Antenna tester Antenna tester

1997-09-10

1999-09-07

Le, Hoanganh

Communications: radio wave antennas

Antennas

Measuring signal energy

343860, H01Q 150, G01R 408

Patent

active

059493801

ABSTRACT:
An antenna tester has a signal generator that produces a test signal applied to the antenna and a reference signal; the test signal and reference signals having a shared noise modulated characteristic; a circuit for detecting a reflected test signal from the antenna in response to the test signal; and a demodulator circuit for demodulating the reflected test signal and reference signal based on the noise characteristic to produce first and second output signals; the first and second output signals having detectable characteristics related to the antenna impedance characteristics.

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patent: 5507010 (1996-04-01), Ahonen
patent: 5548820 (1996-08-01), Victorin

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