Zte Corporation

Xi'an Zhongxing New Software Co., Ltd.

Xiangling Li

Boming Wang

Yan Zhang

Peng Wang

Mengbi Lei

Guojun Zhang

Yajuan Duan

Changjiang Cao

Xiangzi Han

Xianfeng Guo

Provided is an intermediate-frequency analog-to-digital conversion device, including: a gain attenuation module, a gain amplification module, a filter and an analog-to-digital conversion module. The gain attenuation module is configured to perform attenuation processing on a received intermediate-frequency signal. The gain amplification module is connected to the gain attenuation module, and configured to perform amplification processing on a signal that is output from the gain attenuation module. The filter is a variable filter, connected to the gain amplification module, and configured to perform filter processing on a signal that is amplified by a gain amplifier. The analog-to-digital conversion module is connected to the filter, and configured to convert a signal that is filtered by the filter into a digital signal. The technical solution solves the technical problem in the related art and achieves the technical effect of improving the universality of the intermediate-frequency analog-to-digital conversion device.

Intermediate-frequency analogue-to-digital conversion device

A method and apparatus for testing a radio frequency index of an active antenna system are provided. In the method, a tested active antenna system is placed in a test cover for performing radio frequency index testing, wherein, the test cover includes an antenna array part and a passive network part, and the antenna array part and the antenna feeder part of the tested active antenna system are the same. The method for testing includes: monomer calibration of the test cover; near-field coupling calibration; and radio frequency index testing. With the above-mentioned method and apparatus for testing the radio frequency index of the active antenna system, the radio frequency index of the active antenna system can be directly and effectively measured without need of adding an extra test interface.

Method and apparatus for testing radio frequency index of active antenna system

A method and apparatus for testing a radio frequency index and a wireless index of an active antenna system are provided. A probe-type testing cover based on a near field coupling mode is adopted to test the radio frequency index of the tested active antenna system. The method comprises testing cover monomer calibration, testing cover environment calibration, radio frequency index test, putting the tested active antenna system into the testing cover, wherein the test environment is the same as the calibration environment, and performing radio frequency test on the tested active antenna system through a radio frequency port of a test probe after compensating the test environment according to a calibration result obtained from the calibration. Further a comprehensive testing method is provided.

Method and device for testing radio frequency index and wireless index of active antenna system

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Shenzhen, China

Xiangling Li