Method and apparatus for determining at least an indication of return loss of an antenna
First Claim
1. A method of determining an indication of return loss of an antenna of a wireless communication system, comprising:
- measuring, across a frequency band, at least powers of a signal received at communication equipment from an antenna connected to the communication equipment, the received signal including a leakage signal and a reflected signal, the reflected signal being a reflected portion of a test signal injected into a coupler towards the antenna, and the leakage signal being a portion of the test signal leaking from the coupler away from the antenna to the communication equipment;
first determining maximum and minimum powers of the received signal based on output of the measuring step; and
second determining at least an indication of return loss of the antenna based on the determined maximum and minimum powers.
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Accused Products
Abstract
A tone generator generates a test signal that a coupler injects into a cable towards an antenna. A receiver or other communication equipment, connected to the antenna via the cable, measures, across a frequency band, at least powers of a signal received at a base station from the antenna. The received signal includes a leakage signal and a reflected signal where the reflected signal is a reflected portion of the test signal and the leakage signal is a portion of the test signal leaking from the coupler away from the antenna. The communication equipment determines maximum and minimum powers of the received signal based on the measurements, and determines at least an indication of return loss of the antenna based on the determined maximum and minimum powers.
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Citations
14 Claims
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1. A method of determining an indication of return loss of an antenna of a wireless communication system, comprising:
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measuring, across a frequency band, at least powers of a signal received at communication equipment from an antenna connected to the communication equipment, the received signal including a leakage signal and a reflected signal, the reflected signal being a reflected portion of a test signal injected into a coupler towards the antenna, and the leakage signal being a portion of the test signal leaking from the coupler away from the antenna to the communication equipment;
first determining maximum and minimum powers of the received signal based on output of the measuring step; and
second determining at least an indication of return loss of the antenna based on the determined maximum and minimum powers. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. An apparatus for determining an indication of return loss of an antenna of a wireless communication system, comprising:
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a tone generator generating a test signal;
a coupler injecting the test signal into a conductor towards the antenna; and
communication equipment, connected to the antenna via the conductor, measuring, across a frequency band, at least powers of a signal received at a base station from the antenna, the received signal including a leakage signal and a reflected signal, the reflected signal being a reflected portion of the test signal and the leakage signal being a portion of the test signal leaking from the coupler away from the antenna to the communication equipment;
determining maximum and minimum powers of the received signal based on output of the measuring; and
determining at least an indication of return loss of the antenna based on the determined maximum and minimum powers. - View Dependent Claims (14)
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Specification