High-efficiency terahertz frequency doubler based on microstrip line and InP-HEMT
A frequency doubler and microstrip line technology, applied in the field of terahertz communication, can solve the problems of large frequency multiplication noise, complex FET frequency doubler circuit structure, unstable step recovery diode frequency doubler circuit, etc. High frequency efficiency, simple structure and low loss
Pending Publication Date: 2022-03-04
YANGTZE DELTA REGION INST OF UNIV OF ELECTRONICS SCI & TECH OF CHINE HUZHOU +1
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Problems solved by technology
The performance index of the frequency multiplier mainly depends on the conversion gain and efficiency. The conversion efficiency of the varactor diode frequency multiplier is low, and it is easy to generate large frequency multiplication noise; the frequency multiplication efficiency of the planar Schottky diode frequency multiplier is low; the step recovery The circuit of the diode frequency doubler is unstable; the circuit structure of the FET frequency doubler is complex
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[0022] Below in conjunction with accompanying drawing and embodiment the technical scheme of the present invention will be further described:
[0023] Such as figure 1 As shown, the high-efficiency terahertz frequency doubler based on microstrip line and InP-HEMT provided by this embodiment includes a signal input port, a signal output port and a high electron mobility transistor HEMT, and the source of the transistor is grounded. The gate of the transistor is connected to one end of the gate microstrip transmission line MLIN3, and the other end of the gate microstrip transmission line MLIN3 is connected to the output signal quarter-wavelength microstrip line MLIN8, the input signal quarter-wavelength microstrip line MLIN11 and the input matching At one end of the network, the other end of the output signal quarter-wavelength microstrip line MLIN8 is open, and the other end of the input signal quarter-wavelength microstrip line MLIN11 is connected to the input signal quarter-w...
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The terahertz frequency doubler based on the microstrip line and the InP-HEMT comprises a signal input port, a signal output port and a high electron mobility transistor, the source electrode of the transistor is grounded, the grid electrode of the transistor is connected with one end of a grid electrode microstrip transmission line, and the other end of the grid electrode microstrip transmission line is connected with the InP-HEMT. The other end of the grid microstrip transmission line is connected with one end of an output signal quarter-wavelength microstrip line, one end of an input signal quarter-wavelength microstrip line and one end of an input matching network, and the drain electrode of the high electron mobility transistor is connected with one end of a drain microstrip transmission line; the other end of the drain transmission line is connected with one end of an input signal quarter-wavelength microstrip line, one end of an output signal quarter-wavelength microstrip line and one end of an output matching network, and the other end of the input signal quarter-wavelength microstrip line is open-circuited; and the other end of the output signal quarter-wavelength microstrip line is connected with one end of the output signal quarter-wavelength double-sector open-circuit line and one end of the drain power supply microstrip line. According to the invention, the frequency multiplication efficiency is high, and the working bandwidth is wide.
Description
technical field [0001] The invention relates to the technical field of terahertz communication, in particular to a terahertz frequency doubler based on a microstrip line and an InP-HEMT. Background technique [0002] A frequency multiplier is a device that multiplies the frequency of a signal by an integer multiple. In high-frequency communication links, frequency multipliers are very common. In today's booming terahertz communication system, in order to obtain a stable and reliable terahertz frequency source, it is very common to use a frequency multiplier to multiply the frequency of a relatively low-frequency signal source to the terahertz frequency band, which makes information transmission The speed is greatly improved. [0003] Frequency multipliers mainly include varactor diode frequency multipliers, planar Schottky diode frequency multipliers, step recovery diode frequency multipliers, and FET frequency multipliers. Although the devices and structures used by these ...
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IPC IPC(8): H03B19/14
CPCH03B19/14
Inventor 杨自强饶杰张倩玉张雅鑫杨梓强
Owner YANGTZE DELTA REGION INST OF UNIV OF ELECTRONICS SCI & TECH OF CHINE HUZHOU