Signal transmitting and receiving device, electronic device and equipment
A signal and signal source technology, which is applied in the field of electronic devices and equipment, and signal sending and receiving devices, can solve the problems of time-consuming and high cost of sending and receiving machine detection, and achieve the effect of reducing self-inspection cost and rapid self-inspection
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Embodiment 1
[0099] Figure 1 The structural diagram of the signal transmitting and receiving device provided for embodiment 1 of the present application Figure I 。 See Figure 1 As shown, the signal transmitting and receiving device 100 provided by the embodiment of the application has an operating state and a self-test state. The signal transmitting and receiving device 100 includes at least one transmitting channel 10 and at least one receiving channel 20, that is, the number of transmitting channels 10 and receiving channels 20 can be flexibly set according to the actual demand. This may not be limited in the embodiment of the present application. Here is Figure 1 The signal transmitting and receiving device 100 including a transmitting channel 10 and a receiving channel 20 is schematically described as an example.
[0100] Wherein, the transmission channel 10 is used for transmitting the first signal; A receiving channel 20 for receiving a second signal; The second signal is an echo signal...
Embodiment 2
[0128] Figure 4 The structural diagram of the signal transmitting and receiving device provided for embodiment 2 of the present application. See Figure 4 The embodiment of the present application provides a signal transmitting and receiving device 100, which comprises at least one transmitting and receiving channel 70, and the transmitting and receiving channel 70 comprises a transmitting channel 10 and a receiving channel 20; as well as
[0129] The receiving channel 20 includes a first mixer 21 for down converting the echo signal received by the receiving channel 20 based on the reference signal; Wherein, when the signal transmitting and receiving device 100 is in the working state, the frequency of the signal transmitted by the transmission channel is the same as that of the reference signal; as well as
[0130] When the signal transmitting and receiving device 100 is in the self-test state, the frequency of the signal transmitted by the transmission channel is different from ...
Embodiment 3
[0141] Figure 5 The structural diagram of the signal transmitting and receiving device provided for embodiment 3 of the present application Figure I 。 See Figure 5 As shown, the present embodiment provides a signal transmitting and receiving device 100, which has an operating state and a self-test state. The signal transmitting and receiving device 100 includes:
[0142] A local oscillator signal source 80 for providing a local oscillator signal;
[0143] The transmitting antenna 12 is connected with the local oscillator signal source 80, and the transmitting antenna 12 is used to transmit the first signal formed based on the local oscillator signal;
[0144] A receiving antenna 22 for receiving a second signal; The second signal is an echo signal formed based on the first signal;
[0145] The first mixer 21 is connected with the receiving antenna 22 and the local oscillator signal source 80 respectively; as well as
[0146] The first mixer 21 is used for down converting the seco...
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