SYSTEMS AND METHODS OF TESTING ACTIVE DIGITAL RADIO ANTENNAS
First Claim
Patent Images
1. A method comprising:
- generating a test signal;
transmitting the test signal to a fully assembled antenna;
the fully assembled antenna transmitting a radio frequency signal based on the test signal;
receiving the signal transmitted by the fully assembled antenna;
measuring the signal received by the fully assembled antenna; and
comparing the measured signal with the test signal, wherein the radio frequency signal propagates in ambient atmosphere when transmitted from the fully assembled antenna.
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Abstract
Systems and methods of testing active digital radio antennas are presented. Systems and methods can test the active digital radio antenna functioning as both a radio and as an antenna and can test both the transmit and receive performance of the antenna. An electromagnetic probe can scan the antenna to perform the testing and couple to the elements of the antenna using radio frequency signals propagated in the air, as opposed to direct cabling.
27 Citations
40 Claims
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1. A method comprising:
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generating a test signal; transmitting the test signal to a fully assembled antenna; the fully assembled antenna transmitting a radio frequency signal based on the test signal; receiving the signal transmitted by the fully assembled antenna; measuring the signal received by the fully assembled antenna; and comparing the measured signal with the test signal, wherein the radio frequency signal propagates in ambient atmosphere when transmitted from the fully assembled antenna. - View Dependent Claims (2, 3, 4, 5, 7)
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6. A method comprising:
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generating a test signal; transmitting the test signal to an electromagnetic probe; the electromagnetic probe transmitting the test signal via radio frequency; a fully assembled antenna receiving a radio frequency signal from the electromagnetic probe; measuring the radio frequency signal received by the fully assembled antenna; and comparing the measured signal with the test signal, wherein the test signal propagates in ambient atmosphere when transmitted from the electromagnetic probe. - View Dependent Claims (8, 9, 10)
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11. A method comprising:
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obtaining reference amplitude and phase; each transceiver in a fully assembled antenna transmitting, via corresponding radiating elements, a radio frequency signal; successively measuring amplitude and phase of the radio frequency signal transmitted by each of the transceivers in the fully assembled antenna, via the corresponding radiating elements, relative to the reference amplitude and phase; and estimating a beam pattern transmitted by the fully assembled antenna, wherein the radio frequency signal transmitted from each transceiver propagates in ambient atmosphere for measurement. - View Dependent Claims (12, 13, 14)
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15. A method comprising:
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generating a pure test tone; transmitting the pure test tone to an electromagnetic probe; the electromagnetic probe successively transmitting the pure test tone to a fully assembled antenna; successively measuring amplitude and phase of a signal received by the fully assembled antenna; and estimating a beam pattern received by the fully assembled antenna, wherein the pure test tone transmitted from the electromagnetic probe propagates in ambient atmosphere from the electromagnetic probe to the fully assembled antenna. - View Dependent Claims (16, 17, 18)
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19. A method comprising
generating a wave tone with known amplitude and phase; -
transmitting the wave tone with known amplitude and phase to an electromagnetic probe; the electromagnetic probe transmitting the wave tone with known amplitude and phase to a fully assembled antenna; measuring a power level of a signal received by the fully assembled antenna; and calibrating the fully assembled antenna, wherein the wave tone transmitted from the electromagnetic probe propagates in ambient atmosphere from the electromagnetic probe to the fully assembled antenna. - View Dependent Claims (20, 21, 22)
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23. A method comprising:
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a fully assembled antenna transmitting a first signal with known amplitude and phase; measurement equipment receiving a second signal from the fully assembled antenna; measuring amplitude and phase of the second signal received by the measurement equipment; and calibrating the fully assembled antenna, wherein the first signal transmitted by the fully assembled antenna propagates in ambient atmosphere from the fully assembled antenna to the measurement equipment. - View Dependent Claims (24, 25, 26, 27)
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28. A method for testing a fully assembled antenna comprising:
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an electromagnetic probe transmitting and receiving known radio frequency signals propagating in ambient air to and from the fully assembled antenna; and measuring signals transmitted by and received at the fully assembled antenna and the electromagnetic probe. - View Dependent Claims (29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39)
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40. A system comprising:
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a fully assembled active digital radio antenna; and an electromagnetic probe, wherein the electromagnetic probe transmits and receives known radio frequency signals propagated in ambient air to and from the fully assembled antenna, and wherein signals transmitted by and received at the fully assembled antenna and the electromagnetic probe are measured.
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Specification