Method for detecting isolation between antennas for digital radio repeater system
A digital wireless and antenna isolation technology, applied in radio transmission system, wireless communication, transmission system, etc., can solve the difficulty of isolation test of wireless repeater, inconvenient moving of signal source and spectrum analyzer, increase of equipment cost and signal interference and other problems, to achieve the effect of simple design, cost saving and high precision
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[0031] Example one
[0032] Such as figure 1 As shown, the existing digital wireless repeater system is adopted, and the repeater system is a wireless carrier frequency selective repeater system, including: uplink and downlink; the downlink is composed of a duplexer (301) , Low-noise amplifier LNA (101), down-conversion module (102), digital processing unit (103), up-conversion module (104), downstream amplifier AMP (105), duplexer (302) are connected in sequence; The link consists of a duplexer (302), a low-noise amplifier LNA (205), a down-conversion module (204), a digital processing unit (203), an up-conversion module (202), an uplink amplifier AMP (201), and a duplexer ( 301) are connected in sequence; the duplexer (301) is connected to the base station signal (501) through the donor antenna (401), and the duplexer (302) is connected to the mobile phone user (502) through the retransmission antenna (402).
[0033] Such as figure 2 As shown, the downlink digital processing u...
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