P wave band third octave miniature directional coupler

A technology of directional coupler and triple frequency, which is applied in the field of communication and radar, can solve the problems of narrow bandwidth of directional coupler, not suitable for mass production, high cost, etc., and achieve the effect of wide working bandwidth, low cost and high reliability

Inactive Publication Date: 2010-01-06
NANJING UNIV OF SCI & TECH
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  • Abstract
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Problems solved by technology

The directional coupler realized by the conventional design method and process has the disa

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  • P wave band third octave miniature directional coupler
  • P wave band third octave miniature directional coupler
  • P wave band third octave miniature directional coupler

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[0013] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0014] combine figure 1 , figure 2 , image 3 , Figure 4 , the P-band three-octave band miniature directional coupler of the present invention includes a 50-ohm impedance input and output port P1 installed on the first surface, a first asymmetrical stripline TL1, a three-dimensional folding structure coupling stripline CL, and a third non-symmetrical stripline. Symmetrical stripline TL3, third surface mount 50 ohm impedance input, output port P3, second asymmetrical stripline TL2, second surface mount 50 ohm impedance input, output port P2, fourth asymmetrical stripline TL4, the fourth surface-mounted 50-ohm impedance input and output port four P4 and the ground terminal Ground; the first surface-mounted 50-ohm impedance input and output port P1 is connected to the three-dimensional folding structure coupling stripline through the first asymmetrical stri...

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Abstract

The invention relates to a P wave band third octave miniature directional coupler which comprises four surface-mounted 50-ohm input ports and output ports, an asymmetric strip line, a three-dimensional folded and coupled strip line and a ground plate. The structure is achieved by adopting a multi-layer high-frequency and low-loss dielectric stack technology. The P wave band third octave miniature directional coupler has the advantages of wide operating frequency band, small dimension, high reliability, excellent electrical performance, good direct and coupled port broadband phase orthogonality, small direct and coupled port amplitude deviation, good temperature stability, good heat radiation performance, simple structure, high yield, good bulk electrical performance consistency, low cost, convenient installation and use and the like, and can be widely applied to communication, and radar with corresponding frequency bands and wireless systems.

Description

technical field [0001] The invention relates to the field of communication and radar, in particular to a miniature directional coupler of P-band three-octave band used in the field of communication and radar. Background technique [0002] Microwave directional couplers are used in radio frequency and microwave systems for signal power distribution and synthesis, power sampling and detection, balanced amplifiers, analog and digital phase shifters, analog and digital attenuators, etc. A typical microwave directional coupler is essentially a four-port network that divides the input signal into two output signals with a specific ratio of power within a specific frequency range. Similarly, the reverse use has the effect of power synthesis. The directional coupler realized by the conventional design method and process has the disadvantages of narrow bandwidth, large volume, high cost and not suitable for mass production. The P-band triple-octave miniature directional coupler is a...

Claims

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Application Information

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IPC IPC(8): H01P5/18
Inventor 戴永胜符光强叶仲华李宝山王飞宋志东王超宇周文衎肖圣磊郭玉红姚友芳张杰
Owner NANJING UNIV OF SCI & TECH
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