Receivers and Low Noise Amplifiers
A technology for amplifiers and receivers, which is applied in the fields of communication and electronics, and can solve problems such as reducing system integration and area utilization, consuming large power consumption, and multiple off-chip inductances.
Active Publication Date: 2021-06-29
HUAWEI TECH CO LTD
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Problems solved by technology
In order to achieve a lower noise figure at a higher frequency, traditional receivers generally consume large power consumption and require more off-chip inductance, which reduces system integration and area utilization
Method used
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Embodiment Construction
[0172] Embodiments of the present application are described below with reference to the drawings in the embodiments of the present application.
[0173] The 5-6GHz frequency band has been widely used in WLAN communication systems. In the future, 5G-NR will also use this frequency band. In order to achieve better communication quality and coverage of the receiver system, it is necessary to achieve a lower noise figure in this frequency range. must do. The traditional structure needs to consume high power consumption and area to achieve low noise figure. This application proposes a receiver architecture suitable for higher frequencies, using noise cancellation technology, based on moderate power consumption and an on-chip inductance, Facilitates low noise figure at higher frequencies.
[0174] The embodiment of this application proposes some new receiver structures using noise cancellation technology, which can be applied to higher frequencies of 5-6GHz but is not limited to th...
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The embodiment of the present application discloses a receiver and a low noise amplifier. A receiver may include a main signal path and an auxiliary signal path, a combiner circuit and an intermediate frequency amplifier circuit; the main signal path includes a gate series inductor, a first common source The amplifying circuit and the frequency mixing circuit, the input end of the main signal path is connected to the input end of the first common source amplifier circuit through the grid series inductor, the output end of the first common source amplifier circuit is connected to the input end of the frequency mixing circuit, and the output end of the frequency mixing circuit is connected to the input end of the frequency mixing circuit. The first input end of the combination circuit is connected, and the output end of the combination circuit is connected with the input end of the intermediate frequency amplifier circuit; the auxiliary signal path includes a second common source amplifier circuit and a frequency mixing phase-shifting circuit; the auxiliary signal path input end is connected with the second common source The input end of the amplifier circuit is connected, the output end of the second common source amplifier circuit is connected with the input end of the frequency mixing and phase shifting circuit, and the output end of the frequency mixing and phase shifting circuit is connected with the second input end of the combining circuit. The solution of the present application is beneficial to improve system integration and achieve lower noise figure.
Description
technical field [0001] This application relates to the field of communication and electronic technology, especially to a receiver and a low noise amplifier. Background technique [0002] Currently, for most wireless communication receiving systems, a low noise figure (NF, Noise Figure) means that higher sensitivity can be achieved. Generally speaking, for two communication systems with different sensitivities, in order to meet the same SNR (Signal to Noise Ratio) requirement, the system with high sensitivity can achieve wider coverage than the system with low sensitivity. ; At the same time, at the same distance, a system with high sensitivity can achieve a higher signal-to-noise ratio than a system with low sensitivity, thereby achieving a faster data rate. Therefore, for a receiver (Receiver), a smaller noise figure is almost equivalent to better communication quality, and achieving a lower noise figure has always been a research hotspot for receivers. [0003] Among the...
Claims
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IPC IPC(8): H04B1/12H04B1/16H03F3/45H03F3/193H03F1/30H03F1/26
CPCH03F1/26H03F1/301H03F3/193H03F3/45179H03F2200/294H03F2200/451H04B1/126H04B1/1638H03F3/265H03F3/3061H03F3/3066H03F3/45475H03F2203/30031H03F2203/45306H03F2203/45318H03F2203/45522H03F2203/45526H04B1/10
Inventor 杨开拓文振财成千福张军平
Owner HUAWEI TECH CO LTD