Cavity filter test system and method

A cavity filter and test system technology, applied in the electronic field, can solve problems such as difficult time determination, difficult control error, and increased test difficulty, and achieve the effects of increased convenience of use, fast air pressure balance, and improved test efficiency
CN100563059CInactive Publication Date: 2009-11-25HUAWEI TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
HUAWEI TECH CO LTD
Publication Date
2009-11-25
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention provides a cavity filter and its testing system and method. A vent hole is provided in the cavity filter to connect the cavity with the outside world. The test system includes a test device, a low-voltage measurement and control device and an air source device. The input port and output port of the cavity filter are connected to the test device; the low-voltage measurement and control device and the gas source equipment The source device is connected to the vent hole of the cavity filter, and the pressure of the inner cavity of the control cavity filter is in the low-pressure test area. The cost is reduced, the occupied space is reduced, the power consumption is reduced, and the convenience of use is increased. Small size, good maneuverability, easy to add to the production line. The air pressure balance is fast and the test efficiency is improved. It can satisfy components (1) to be tested in different shapes and sizes, without volume limitation. If it is used with a high and low temperature humid heat box, the component to be tested (1) is placed in the high and low temperature humid heat box, and the air source device (15) is connected to the component to be tested (1) through a gas pipe, so that high and low temperature humid heat and low air pressure can be performed. The characteristic test of the component under test (1) under the condition.
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Description

technical field

[0001] The invention relates to the field of electronic technology, in particular to a cavity filter testing system and method. Background technique

[0002] Cavity filters are widely used in the field of electronic technology. For example, in the radio frequency front-end of equipment such as wireless base stations or repeaters, they are generally equipped with cavity filters (such as duplexers) with air as the medium. The RF signal is filtered and duplexed. When the atmospheric pressure in the area where the cavity filter is used is different, the power capacity of the cavity filter with air as the medium changes with the change of air pressure. When the external atmospheric pressure decreases, the power capacity of the cavity filter also decreases ; Conversely, when the external atmospheric pressure increases, the power capacity of the cavity filter also increases; therefore, for base stations at high altitudes, due to the low external atmospheric pressur...

Claims

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