Novel continuously-adjustable microwave band-pass power divider based on nematic liquid crystals
A technology of power splitter and microwave band, which is applied in the field of new continuously adjustable microwave band pass power splitter, which can solve the problems of non-continuous adjustment of PIN diode switch, high tuning voltage of MEMS devices, narrow adjustable bandwidth of ferrite, etc. , to achieve the effect of compact structure, convenient integration and miniaturization design
Inactive Publication Date: 2015-02-18
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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[0019] Such as Figure 1-4 As shown, a new type of continuously adjustable microwave bandpass power splitter based on nematic liquid crystal, which mainly includes the top dielectric board, the power distribution resonant unit of the bandpass power splitter, input and output feeders, the bottom dielectric board, metal ground and liquid crystal; it is characterized in that: described top layer dielectric board is rectangular, is a kind of printed circuit PCB board, mainly carries the power distribution resonant unit of bandpass power splitter, and input and output feeder; Described bottom layer dielectric board is in the form of Rectangular, the middle area is hollowed out to form a groove for accommodating nematic liquid crystals; the metal ground, attached to the back of the top and bottom printed circuit boards, is a square metal, used to carry the above-mentioned printed circuit board circuit board and nematic liquid crystal material, and ground.
[0020] Wherein, the powe...
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The invention discloses a novel continuously-adjustable microwave band-pass power divider based on nematic liquid crystals. The novel continuously-adjustable microwave band-pass power divider mainly comprises a top-layer dielectric slab, power distribution resonance unit for the band-pass power divider, an in-out feed line, a bottom-layer dielectric slab, a block of metal and the liquid crystals. The novel continuously-adjustable microwave band-pass power divider is characterized in that the top-layer dielectric slab is rectangular, is a printed circuit board (PCB), and is mainly used for bearing the power distribution resonance unit of the band-pass power divider and the in-out feed line; the bottom-layer dielectric slab is rectangular, the middle region of the bottom-layer dielectric slab is hollowed out to form a groove and used for containing the nematic liquid crystals; the metal is a block of square metal which is attached to the position below the backs of the top-layer printed circuit board and the bottom-layer printed circuit board, used for bearing the printed circuit boards and the nematic liquid crystals and earthed. The novel continuously-adjustable microwave band-pass power divider is continuously adjustable, low in loss, multiple in function, miniaturized, low in cost and simple in design.
Description
technical field [0001] The invention specifically relates to a novel continuously adjustable microwave bandpass power divider based on nematic liquid crystal, which can be applied in microwave electronic systems. Background technique [0002] With the rapid development of electronic technology and the increasingly crowded spectrum resources, modern electronic information systems are rapidly developing toward the goals of multi-band, multi-functional, low cost, light weight, small size, and high reliability in addition to high performance. Miniaturized, high-performance, low-cost and tunable microwave passive devices, as an important part of electronic systems, play an important role in realizing miniaturization and tunability of microwave subsystems. Therefore, the research of tunable technology and reconfigurable technology has become a hot spot and difficulty in microwave research. Most of the existing adjustable passive device implementation technologies are to introduce...
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IPC IPC(8): H01P5/12
Inventor 蒋迪黄涛何朝升邵振海
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA