Electromagnetic delay line inductance element

• US 20070035363A1
• Filed: 11/02/2004
• Published: 02/15/2007
• Est. Priority Date: 11/04/2003
• Status: Abandoned Application

• Current Assignee: Elmec Corporation
• Original Assignee: Elmec Corporation
• Inventors: Kameya, Masaaki
• Application Number:
  US10/578,143
• Publication Number:
  US 20070035363A1
• Time in Patent Office: Days
• US Class Current: 333/140
• CPC Class Codes: H01F 2017/0026 Multilayer LC-filter
• CPC Class Codes: H03H 2001/0085 Multilayer, e.g. LTCC, HTCC, green sheets inside PCB filters H05K
• CPC Class Codes: H03H 7/30 Time-delay networks analogue shift registers G11C27/04

Abstract

To provide an inductance element of a lumped constant type electromagnetic delay line which can easily be made as an ultra-small chip shape and obtain a preferable connection state at each section. Spiral-shaped inductors L0B, L4A, and L4B are formed on a first insulating substrate 15, and inductors L4A and L4B are connected in series. Spiral-shaped inductors L1, L3, and L5 are formed on a second and third insulating substrates 22 and 33. Spiral-shaped inductors L2A, L2B, and L6A are formed on a fourth insulating substrate 41, and the inductors L2A and L2B are connected in series. The first to fourth insulating substrates 15 to 41 are stacked on one another, and the inductors L0B to L6A are vertically connected. The inductors L2A and L2B, and L4A and L4B are divided into two portions in horizontal directions to form one section, and connected with positive coupling to the preceding and the following sections not divided in the horizontal direction.

Claims

1. An inductance element of an electromagnetic delay line in a lumped constant type electromagnetic delay line having a plurality of sections formed of an inductance element which is formed by connecting a plurality of inductors in series, and capacities which are vertically connected to each connection point in a ladder shape,

wherein the inductors of the electromagnetic delay line are formed in a spiral shape, the inductors of one section are formed by alternately and vertically connecting the section divided and arranged into a first and second inductors in a horizontal direction and the section not divided, the first inductor is arranged in a vertical positional relation so as to be connected with positive coupling to the inductor of the preceding section not divided in series, and the second inductor of the section is arranged in the vertical positional relation so as to be connected with positive coupling to the inductor of the following section not divided in series, and the inductors as two sections of delay line are arranged in the vertical positional relation.

2. The inductance element of the electromagnetic delay line according to claim 1, wherein the inductors of two sections formed between the section not divided in the horizontal direction and the preceding and the following sections divided in the horizontal direction, with the section not divided placed there between, are connected with positive coupling in the vertical positional relation, and this structure is defined as one inductance unit, and a plurality of inductance units thus constituted are vertically connected and adjacent inductance units are dispersed and arranged in first, second virtual lines.