Non reversible circuit element

A circuit element and inverse technology, which is applied in the direction of electrical components, circuits, waveguide devices, etc., can solve the problem of high temperature of the resistor body, achieve the effect of increasing heat capacity, increasing the degree of freedom, and improving the effect of heat dissipation

Inactive Publication Date: 2006-04-12
PANASONIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If such a method is adopted, when a large power input is made to the resistor body, the temperature of the resistor body will be very high

Method used

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  • Non reversible circuit element
  • Non reversible circuit element
  • Non reversible circuit element

Examples

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Embodiment Construction

[0040] The operating power of the conventional non-reciprocal circuit element is, for example, 2.5 W in the forward direction and 0.6 W in the reverse direction, but it is ideal to have an operating power of 5 W in the forward direction. The non-reciprocal circuit element of the present invention can increase its working power without losing its low-loss characteristics in miniaturization, and can obtain a working power of about 5W in the forward direction.

[0041] The irreversible circuit element of the present invention utilizes that when a magnetic body including ferrite and the like is applied with an appropriate DC magnetic field, it acts as an anisotropic medium on a high-frequency electromagnetic field, and makes the high-frequency input to the magnetic body The property of a signal traveling in a direction different from the direction of incidence.

[0042] Embodiments of the present invention will be described below with reference to the drawings.

[0043] figure ...

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PUM

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Abstract

A compact non-reciprocal circuit device capable of handling a high power without impairment of the characteristics. The non-reciprocal circuit device contains a magnetic substrate that exhibits anisotropic behavior by application of a direct-current magnetic field. On the surface of the substrate, strip-lines are disposed at an angle, being insulated with each other. One end of each strip-line is grounded, and the other end of each is connected through a capacitor to a ground. Of the ends connecting the capacitors, one end connects to a termination resistor; the remaining ends connect each to an input terminal and an output terminal. The non-reciprocal circuit device exhibits non-reciprocal characteristics between the input and output terminals. The case of the device contains an insulating thermal conductor that serves as a heat-radiator for the termination resistor and the strip-lines.

Description

technical field [0001] The present invention mainly relates to an irreversible circuit element, in particular to an irreversible circuit element used in a mobile communication device such as a car phone and a mobile phone working in the UHF frequency band and the microwave frequency band, especially a high-power Nonreciprocal circuit components used. Background technique [0002] Due to the small size of the irreversible circuit element, it has been used in mobile communication terminal equipment from a long time ago. [0003] Such as Figure 9 As shown, in a non-reciprocal circuit element, a forward signal input from an input terminal is output to an output terminal through a low-loss path. [0004] On the other hand, if Figure 10 As shown, the signal in the reverse direction input from the output terminal is output to another terminal through a route different from the above-described route, and then absorbed by the terminating resistor connected thereto. Therefore, th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01P1/32H01P1/387
CPCH01P1/387
Inventor 山口修一郎德永裕美藤村宗范内仁志河野浩志
Owner PANASONIC CORP
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