Resonator and bandpass filter

A technology of resonators and resonant capacitors, applied in resonators, waveguide devices, impedance networks, etc., can solve problems such as increased system costs, inability to achieve miniaturization, and space occupation

Inactive Publication Date: 2009-12-30
SHENZHEN INST OF ADVANCED TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the traditional embedding technology needs to embed capacitors and inductors in the corresponding organic substrates, and the additional

Method used

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  • Resonator and bandpass filter
  • Resonator and bandpass filter
  • Resonator and bandpass filter

Examples

Experimental program
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Embodiment Construction

[0018] The inductor and capacitor are integrated to form a resonant circuit, and the resonant circuit is embedded in the printed circuit board in the same way as the traditional embedded capacitor technology. The inductor and capacitor can be integrated into an organic substrate layer at the same time, without additional organic components. The substrate layer is used to accommodate the inductor, which effectively achieves the purpose of miniaturization.

[0019] figure 1 The simplest form of a resonant circuit consists of a capacitor and an inductor connected in parallel.

[0020] like image 3 shown, based on figure 1 Top view of the constructed resonator. The inductance 1 is a planar spiral structure, which is formed by multiple bends of metal strips and separated by a certain distance, and the dielectric layer 2 is underneath it.

[0021] like Figure 4 Shown is a cross-sectional view of the resonator. It includes a planar spiral inductor 1 formed by metal strip trac...

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Abstract

The invention relates to a resonator and a bandpass filter, belonging to the field of an electric device. The resonator comprises a capacitor and an inductor which form parallel connection; the capacitor has a large-area flat plate-type embedded type capacitor structure for adding a dielectric layer in metal layers as polar plates; the inductor has a planar structure, and is used as a polar plane of the capacitor; and one end of the inductor is led out and is connected with an external circuit and the other end thereof is connected with the other polar plane of the capacitor. The bandpass filter is formed by coupling an external capacitor or an external inductor with at least two resonators. The resonator forms a resonance circuit by integrating the inductor and capacitor; a method which is same with the traditional embedded type capacitance technology is used for embedding the resonance circuit into a printing circuit board, so the inductor and the capacitor can be simultaneously integrated into an organic base plate layer, and an additional organic base plate layer is not needed to contain the inductor, thus achieving the purpose of miniaturization.

Description

【Technical field】 [0001] The invention relates to an electrical device, in particular to a resonator and a band-pass filter. 【Background technique】 [0002] With the development of electronic products in the direction of miniaturization, high density, and multi-function, the number of various components and interconnection lines in electronic products is gradually increasing, and the physical size of the components and interconnection lines is also getting smaller and smaller. Therefore, the system-in-package technology that integrates electronic systems composed of various active and passive components into a common package has become an important trend in the future. [0003] Many printed circuit boards have resonant circuits, and use resonant circuits to form bandpass filters. A resonant circuit is generally formed by connecting a capacitor and an inductor in parallel. In a high-density printed circuit board, the number of inductors and capacitors is huge, and how to in...

Claims

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Application Information

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IPC IPC(8): H01P7/00H01P1/20H03H1/00H03H7/01
Inventor 王云峰李磊刘小利
Owner SHENZHEN INST OF ADVANCED TECH
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