Unlock instant, AI-driven research and patent intelligence for your innovation.

Non-reciprocal circuit element

A unidirectional circuit and component technology, applied in the direction of electrical components, circuits, waveguide devices, etc., can solve the problems of electrical performance differences, lower productivity, and difficulty in realizing curved structures with predetermined crossing angles.

Inactive Publication Date: 2004-05-05
HITACHI METALS LTD
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This prior art document also states that thin strip electrodes are extremely difficult to achieve a curved structure with a predetermined intersection angle, thereby reducing productivity, reducing electrical performance, and causing differences in electrical performance between products

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Non-reciprocal circuit element
  • Non-reciprocal circuit element
  • Non-reciprocal circuit element

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] The unidirectional circuit element of the present invention will be described by taking an isolator as an example. First, referring to FIG. 1A , assembly of various elements into a conductor assembly will be described.

[0039] The garnet disk 25 is arranged on the shielding disk 2 . Garnet is iron with wide sensitivity and is a suitable iron material for separators. The shielding disk 2 has three strip-shaped electrodes 21, 22, 23, and the strip-shaped electrodes 21, 22, 23 are integrally formed with the shielding disk 2 and extend radially at an angle of 120°. For example, firstly, the strip electrode 21 is bent upwards at the edge of the bottom surface of the garnet disk 25 , so as to extend upwards and contact the peripheral surface of the garnet disk 25 . Next, the strip electrode 21 is bent inwardly at the edge of the top surface of the garnet disk 25 so as to extend horizontally and contact the top surface of the garnet disk 25 . The insulating plate 31 is pla...

Embodiment 2

[0076] Figure 2A Showing a conductor assembly 20 of another preferred embodiment of the present invention, Figure 2B The connection between the ends of the strip electrodes 21 and the capacitor C1 is shown. 3A and 3B illustrate the assembly of the conductor assembly 20 .

[0077] Referring to FIG. 3A , the garnet disc 25 is placed on the shielding disc 2 , and the strip-shaped electrodes 21 , 22 , 23 as an integral part of the shielding disc 2 extend radially from the shielding disc 2 . Then, a strip-shaped electrode such as a strip-shaped electrode 21 is bent at the edge of the bottom surface of the garnet disk 25, thereby extending upward to contact the peripheral surface of the garnet disk 25, and then, further bent inward at the edge of the top surface of the garnet disk 25, Thus, the horizontal extension contacts the top surface of the garnet disk 25 and passes through the center of the top surface thereof, as shown in FIG. 3B . Subsequently, the ends of the curved s...

Embodiment 3

[0090] In this embodiment, different from the preferred embodiment 2, the ends of each strip-shaped electrode are not further bent, but only stay in contact with the top surface of the garnet disk 25 extending horizontally, as Figure 1B shown. Each capacitor connected to the strip electrode is placed with its top surface coplanar with the bottom surface of the strip electrode.

[0091] The assembly of the conductor assembly is described below. As shown in FIG. 1A or 3A, a garnet disc 25 is placed on a shielding disc 2 having strip-shaped electrodes 21, 22, 23 extending radially therefrom as an integral part thereof. Then, a strip-shaped electrode such as a strip-shaped electrode 21 is bent at the edge of the bottom surface of the garnet disk 25, thereby extending upward to contact the peripheral surface of the garnet disk 25, and then, further bent inward at the edge of the top surface of the garnet disk 25, Thus extending horizontally to contact the top surface of the garn...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A non-reciprocal circuit element for transmitting a high-frequency signal of microwave band in one direction. The electrical characteristics of the non-reciprocal circuit element have been improved by using an insulating sheet having a thickness within a specific range thereby to regulate the distance between vertically adjacent strip electrodes within a specific range. Also, the product-to-product variation in the electrical characteristics of the non-reciprocal circuit element has been minimized by shaping the end portion of the strip electrode so as to extend in coplanar relationship to the top surface of the capacitor to be connected.

Description

technical field [0001] The present invention relates to a unidirectional circuit element for microwave band high-frequency electronic devices. [0002] Unidirectional circuit elements are used in transmission circuits of portable communication devices such as cellular radiotelephones and vehicular radiotelephones to transmit microwave signals only in one direction. The recent demand for smaller size and higher performance of portable communication devices requires smaller size and higher performance of the unidirectional circuit element itself. To meet such requirements, lumped parameter type unidirectional circuit elements have been widely used because they are easy to reduce in size. Background technique [0003] Unidirectional circuit components, including isolators and circulators, have almost identical basic structures to each other. An exploded view of each element constituting the lumped parameter type isolator is shown in Fig. 5 . The resin case 7 is installed in ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H01P1/36H01P1/32H01P1/383
CPCH01P1/383H01P1/32H01P1/36H01P1/375
Inventor 高根慎司松本绫二
Owner HITACHI METALS LTD