Title:
METHOD FOR SUPPRESSING LOCAL OSCILLATOR LEAKAGE IN MICROWAVE CHIP AND DEVICE THEREOF
Document Type and Number:
WIPO Patent Application WO/2017/210846
Kind Code:
A1
Abstract:
According to the embodiments of the present invention, a direct current component coefficient dci' of an I-channel signal and a direct current component coefficient dcq' of a Q-channel signal are weighted according to spatial leakage factors k1, k2 of a microwave chip and the current attenuation of a variable attenuator; a direct current component coefficient dci of a corrected I-channel signal and a direct current component coefficient dcq of a corrected Q-channel signal are determined; and a direct current component coefficient of the I-channel signal and a direct current component coefficient of the Q-channel signal that are superimposed on the microwave chip are respectively determined according to the direct current component coefficient dci of the corrected I-channel signal and the direct current component coefficient dcq of the corrected Q-channel signal. As a result, local oscillator leakage in the microwave chip can be effectively suppressed, system performance of the microwave chip is improved, difficulty in system design is reduced, and manufacturing costs are decreased.
Inventors:
TUO YONG (CN)
CAO WENTAO (CN)
MAO HONGLIANG (CN)
SUN LIGUO (CN)
CAO WENTAO (CN)
MAO HONGLIANG (CN)
SUN LIGUO (CN)
Application Number:
PCT/CN2016/085004
Publication Date:
December 14, 2017
Filing Date:
June 06, 2016
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
H03D7/18
Foreign References:
| CN104158552A | 2014-11-19 | |||
| CN102510265A | 2012-06-20 | |||
| CN102270965A | 2011-12-07 |
Other References:
See also references of EP 3457563A4
Attorney, Agent or Firm:
LONGSUN LEAD IP LTD. (CN)
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