Six port self-injection locked radar
An injection-locked, six-port technology, applied in the field of six-port self-injection-locked radar, which can solve problems such as the difficulty of realizing the mixing unit and the limitation of the operating frequency of self-injection-locked radar.
Inactive Publication Date: 2020-10-30
SIL RADAR TECH INC
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Problems solved by technology
Please refer to the case Figure 4 A, 4B, and 4C are various embodiments of the demodulation unit of the receiver. It can be seen that each demodulation unit includes a frequency mixing unit to mix the frequency modulation signal, but due to self-injection locking The sensitivity of the radar is positively correlated with its operating frequency. When the operating frequency is higher, the sensitivity to subtle vibrations is higher, but the higher the operating frequency, the receiver's mixing unit is not easy to implement, making self-injection lock the operating frequency of the radar limited by hardware
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[0048]In order to make the description of the present invention more detailed and complete, the following provides an illustrative description of the implementation aspects and specific embodiments of the present invention; but this is not the only form for implementing or using the specific embodiments of the present invention. The various embodiments disclosed below can be combined or replaced with each other when beneficial, and other embodiments can also be added to one embodiment, without further description or illustration. In the following description, numerous specific details will be set forth in order to enable readers to fully understand the following embodiments. However, embodiments of the invention may be practiced without these specific details.
[0049] The embodiments of the present invention are described in detail below, but the present invention is not limited to the scope of the examples.
[0050] see figure 1 , which is a functional block diagram of a ...
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The invention discloses a six-port SIL radar includes an oscillation element, a transceiver element, a power coupling element and a six-port demodulation element. The six-port demodulation element isutilized to demodulate an oscillation signal from the oscillation element such that the operating frequency of the six-port SIL radar will not be restricted by hardware. Further, the power coupling element is configured to divide the oscillation signal into two signals that have equal power when received by the six-port demodulation element for signal-to-noise ratio optimization.
Description
technical field [0001] The invention relates to a self-injection locking radar, in particular to a six-port self-injection locking radar. Background technique [0002] Please refer to China Taiwan Patent No.: I493213 "Action / Disturbance Signal Detection System and Method", which discloses an action / disturbance signal detection system, wherein the action / disturbance signal detection system is a self-injection locking radar, the action / disturbance signal The signal detection system sends a wireless signal to the object under test through the transmitter, and receives the reflected signal reflected by the object under test. The reflected signal is injected into the transmitter to make it in a self-injection locked state, so that the wireless signal is modulated into a frequency modulation At the same time, the wireless signal emitted by the transmitter is also received by the receiver of the action / disturbance signal detection system, and demodulated to obtain the action / distur...
Claims
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IPC IPC(8): G01S7/02G01S7/41
CPCG01S7/021G01S7/414G01S7/03G01S7/354G01S13/536G01S13/88G01S13/34G01S7/35
Inventor 王复康李展宏阮品勋田胜侑
Owner SIL RADAR TECH INC