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High frequency circuit device and transmit-receiving device

A high-frequency circuit, suppressing circuit technology, applied in circuits, electrical components, impedance networks, etc., can solve problems such as easy to increase manufacturing costs, increase the area of ​​conductor patterns, etc.

Inactive Publication Date: 2005-08-17
MURATA MFG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Therefore, in the prior art, since there is a tendency to increase the area of ​​the conductive pattern, there is a problem that the overall size of the dielectric plate is increased, and the manufacturing cost is likely to increase.

Method used

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  • High frequency circuit device and transmit-receiving device
  • High frequency circuit device and transmit-receiving device
  • High frequency circuit device and transmit-receiving device

Examples

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Embodiment Construction

[0054] Hereinafter, a high-frequency circuit device according to an embodiment of the present invention will be described in detail with reference to the drawings.

[0055] First, Figure 1 to Figure 11 The first embodiment is shown. In the figure, 1 is a dielectric substrate composed of a resin material, a ceramic material or a composite material formed by mixing them and sintering them. For example, a dielectric constant εr of about 24 is used with a substrate of 0.6 mm. A dielectric substrate 1 is formed on a flat plate having a thickness T.

[0056] 2 denotes a plane conductor formed on the surface 1A of the dielectric substrate 1, and 3 denotes a plane conductor formed on the back surface 1B of the dielectric substrate 1 as a ground electrode. The planar conductors 2, 3 are composed of a conductive metal film with a thickness of, for example, 1-3 μm, and cover the surface 1A, the inside 1B of the dielectric substrate 1 substantially completely.

[0057] 4 is a slot line...

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PUM

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Abstract

The invention provides a high frequency circuit apparatus that can be downsized while suppressing propagation of an unnecessary wave, and a transmitter / receiver device. A planar conductor (2) is provided on each two surfaces of a dielectric substrate 1 while a slot line is formed on a top surface 1A. Also, undesired-wave propagation preventing circuits 5, each including multistage band-elimination filters 6, are provided on the top surface 1A of the dielectric substrate 1, with the slot line therebetween. Each of the band-elimination filters 6 includes two conductive lines 7A, 7B and a resonator 8 which is provided at a portion of one of the conductive lines 7A and which includes two spiral lines 8A, 8B. Accordingly, propagation of an undesired wave of the band whose center is the resonance frequency of the resonator 8 can be prevented.

Description

technical field [0001] The present invention relates to a high-frequency circuit device having a waveguide of two parallel planar conductors and a resonator, and a transceiver using the device. Background technique [0002] In general, known high-frequency circuit devices using high-frequency signals such as microwaves and millimeter waves include, for example, forming a ground electrode on the inside of a dielectric plate and a coplanar ground coplanar line on the surface; Various transmission lines such as a ground slot line in which a ground electrode is formed on the inside and a slot is formed on the surface, and a planar dielectric line (hereinafter referred to as PDTL) in which gaps are formed on both sides of a dielectric plate and opposed to each other. . [0003] These transmission lines are all due to the structure of two parallel planar conductors. Therefore, for example, when electromagnetic field disturbances are generated at the input and output ends of the t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01P1/203H01P1/16H01P1/212H01P3/02H01P7/00H03H5/02
CPCH01P3/023H01P7/005H01P1/212
Inventor 三上重幸河内哲也松崎宏泰向山和孝坂本孝一石川容平
Owner MURATA MFG CO LTD