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公开(公告)号：US20200274565A1
公开(公告)日：2020-08-27
申请号：US16711490
申请日：2019-12-12
发明人： BENG-MENG CHEN , CHIEN-JUNG HUANG , YI-HUA LU
摘要： A device includes a baseband circuit that generates a first digital signal, a digital-to-analog converter (DAC) that converts the first digital signal into a baseband signal, a first mixer that generates a first mixed signal based on the baseband signal and a first reference signal, a second mixer that generates a second mixed signal based on the baseband signal and a second reference signal, a third mixer that generates a down-converted signal based on the first mixed signal and the second mixed signal, and an analog-to-digital converter (ADC) that converts the down-converted signal into a second digital signal. The frequency of the first reference signal is different from the frequency of the second reference signal.
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公开(公告)号：US20230133223A1
公开(公告)日：2023-05-04
申请号：US17979356
申请日：2022-11-02
发明人： BENG-MENG CHEN , CHIEN-JUNG HUANG , JHIH-YUAN KE
摘要： The present invention discloses a transmission circuit having output power compensation mechanism. A base-band circuit receives and processes a digital input signal to perform conversion and amplification according to at least one gain parameter to generate an analog output signal. A frequency up-converting circuit performs frequency up-conversion on the analog output signal to generate an RF signal. A RF amplification circuit amplifies the RF signal to generate an output RF signal to an antenna. A temperature monitoring circuit monitors temperature of the RF amplification circuit to generate an instant temperature value thereof. A calibration circuit increases at least a part of the gain parameter when the instant temperature value makes a power of the RF amplification circuit decrease and decreases at least a part of the gain parameter when the instant temperature value makes the power increase.
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