Millimeter wave and terahertz sixteenth harmonic mixer based on avalanche diode

A sub-harmonic mixer, avalanche diode technology, applied in the millimeter wave field, can solve the problems of difficulty in meeting users to reduce costs, manufacturing costs and high use costs, and achieve the effects of performance improvement, cost reduction, and operating frequency reduction.

Inactive Publication Date: 2015-12-16
UNIV OF ELECTRONICS SCI & TECH OF CHINA +1
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Problems solved by technology

[0004] The existing technology of the second or fourth Schottky diode harmonic mixer, the manufacturing cost and the cost of use are high, so in the current increasingly widespread form of millimeter wave communication, the prior art mixer has been difficult Meet the user's requirements for cost reduction

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  • Millimeter wave and terahertz sixteenth harmonic mixer based on avalanche diode
  • Millimeter wave and terahertz sixteenth harmonic mixer based on avalanche diode
  • Millimeter wave and terahertz sixteenth harmonic mixer based on avalanche diode

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Embodiment Construction

[0017] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0018] Such as figure 1 As shown, the avalanche diode-based millimeter wave and terahertz sixteenth harmonic mixer disclosed in the present invention includes: the radio frequency signal is input through the single-sided fin line 8 and the coplanar waveguide 9 in sequence, and the output end of the coplanar waveguide 9 passes through The gold band A10 is connected to the die of the avalanche diode D, and the die of the avalanche diode D is also connected to the large end of the linear gradient low impedance transmission line 7 through the gold band B11, and the small end of the linear gradient low impedance transmission line 7 is connected through the microstrip transmission line 12 One end of the double-folded microstrip compact resonance unit A6, the local oscil...

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Abstract

The invention discloses a millimeter wave and terahertz sixteenth harmonic mixer based on an avalanche diode. On the basis of a microstrip transmission line and an avalanche diode that is connected to the ground in parallel, the harmonic mixer also includes a coplanar waveguide one-side fin line transmission line, two double-folded compact microstrip resonant cells (DCMRC), and a three-parallel coupling line DC block. The combination of the two double-folded compact microstrip resonant cells (DCMRC) that work at different frequencies helps to effectively improve isolation between a local oscillator and an intermediate frequency port, between a local oscillator and a radio frequency port and between an intermediate frequency port and a radio frequency port, and also enables the reactive load of a terminal at an idle harmonic frequency to be flexibly adjusted. Through the above way, the work frequency of a local oscillator is greatly reduced, the performance is greatly improved, and the cost is effectively reduced.

Description

technical field [0001] The invention relates to the technical field of millimeter waves, in particular to a millimeter wave and terahertz sixteenth harmonic mixer based on avalanche diodes. Background technique [0002] In the millimeter wave and terahertz frequency bands, the Schottky diode second or fourth harmonic mixer used in receiving and transmitting equipment still has a relatively high frequency of the local oscillator excitation signal, and at the same time has a large frequency conversion loss. If higher order harmonics are used for frequency mixing, the conversion loss increases significantly. P.A. Rolland proposed a theory of frequency multiplication and up-conversion by using the harmonics generated by the avalanche diode in IEEE Transactions on Microwave Theory and Techniques, 24 (11), pp.768-775, 1976 named "New modes of operation for avalanched diodes frequency multiplication and up-conversion", and in the design In the example, the result of a Ka-band aval...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03D7/16
Inventor 赵明华李可樊勇朱忠博崔万照
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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