High-performance full-duplex communication circuit
A communication circuit and full-duplex technology, applied in the field of communication, can solve problems such as unfavorable signal reception and decoding, and unsatisfactory transmission performance, so as to achieve maximum reception gain, stable reception and transmission signal performance, and improved reception performance.
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Embodiment 1
[0039] Such as Figure 1 to Figure 7 As shown, a high-performance full-duplex communication circuit in this embodiment includes a low-frequency processing module, a high-frequency processing module, a signal input port, a signal receiving port, a low-frequency antenna, and a high-frequency antenna; the low-frequency processing module and the high-frequency The processing modules all include a power amplifier circuit, a straight-through filter circuit and a transceiver switch circuit connected in sequence;
[0040] The power amplifying circuit of the low frequency processing module and the power amplifying circuit of the high frequency processing module are respectively connected to the signal input port through a selective filter circuit; The transceiver switch circuit of the frequency band processing module is connected to the high frequency antenna bidirectional signal through a directional coupling circuit; the transceiver switch circuit of the low frequency band processing...
Embodiment 2
[0063] In this embodiment, a high-performance full-duplex communication circuit is illustrated by taking the 30-500M band signal as an example, as Figure 8shown. The low-frequency band processing module processes 30-100M band signals, and the low-frequency band processing module processes 110-500M band signals. In the low-frequency band processing module, the power amplifier circuit is a 30-100M power amplifier circuit, and the straight-through filter circuit includes a straight-through branch and three low-pass filter branches; the three low-pass filter branches are respectively 30-45MHz low-pass filter branches , 45-70MHz low-pass filter branch and 70-100MHz low-pass filter branch. In the high-frequency band processing module, the power amplifier circuit is a 110-500M power amplifier circuit, and the straight-through filter circuit includes a straight-through branch and three low-pass filter branches; the three low-pass filter branches are respectively 110-180MHz low-pass ...
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