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System and method for correcting transmitter-receiver set

A technology for transceivers and receivers, applied in transmission systems, electrical components, antenna arrays, etc., can solve problems such as loss, inability to measure single antenna loss power, and inability to measure loss power

Inactive Publication Date: 2005-10-12
BENQ CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] This known calibration method has at least the following disadvantages: the first is unable to measure the power loss caused by the antenna end where the single antenna 16 is located and the transmission line 88; Two RF signal coupler 130->attenuator 152->switch 160 will produce a huge amount of attenuation, so that the signal value received by the correction processing unit 100 is distorted
[0008] This known correction method also cannot measure the power loss caused by the antenna end where the single antenna 16 is located and the transmission line 88, but in the transmission state, the antenna end where the single antenna 16 is located and the transmission line 88 will cause a huge loss of power

Method used

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Embodiment Construction

[0046] The first embodiment of the present invention provides a system for calibrating a transceiver device. This system can effectively and accurately measure the power loss caused by the transmitting end of the transceiver device, and then pre-compensate the possible power loss when transmitting signals. , so that when the transmitted signal is transmitted from the antenna of the transceiver device, it still maintains the expected power.

[0047]The first embodiment of the present invention is as figure 2 As shown, the transceiver device 20 includes a signal transmitter 201 , a signal transmitter receiver 203 and an antenna end 205 . Wherein, the signal transmitter 201 is used to send a signal; the signal transmitter receiver 203 is used to receive the signal transmitted by the signal transmitter 201 but reflected back by the antenna end 205; the antenna end 205 is used to connect an antenna.

[0048] The transceiver device 20 further includes a signal receiver 207 , a circ...

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Abstract

The signal generator is used to input a first signal through antennal input. A signal transmitter is used to generate a second signal through reflection of antenna. The processor compares the first signal and second signal to get the value of power loss caused by signal transmitter receiver set. A tunable loading is connected with antennal, and processor receives the third signal transmitted by multi signal transmitters through tunable loading. According to the third signal, sets an optimal threshold.

Description

technical field [0001] The present invention relates to a system and method for calibrating a transceiver device, more specifically, a system and method for calibrating a wireless communication transceiver device. Background technique [0002] Array antennas are generally used in systems for transmitting and / or receiving radio frequency signals, such systems include wireless communication systems, such as cellular phone systems and radar systems. The advantages of the array antenna over the single antenna are: higher signal-to-noise ratio, strong ability to reject received signal interference, lower transmission signal power required, and better directivity. [0003] For an ideal array antenna, each single antenna in the array antenna should have the same influence on signal characteristics such as signal attenuation and phase offset, and engineers are also working hard to design a group of array antennas with characteristics close to the ideal state , but this project is v...

Claims

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Application Information

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IPC IPC(8): H01Q21/00H04B1/40H04B1/48
Inventor 何嘉振
Owner BENQ CORP