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Ultra-wideband band-pass filter based on IPD technology

A band-pass filter and ultra-wideband technology, applied in the field of filters, can solve the problems of the device size not being able to achieve miniaturization design, limiting the application of UWB filters, etc.

Pending Publication Date: 2022-05-27
SOUTH CHINA NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if the traditional design method is used and the influence of the wavelength of the frequency of use is considered, the size of the device cannot be miniaturized, which limits the application of UWB filters

Method used

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  • Ultra-wideband band-pass filter based on IPD technology
  • Ultra-wideband band-pass filter based on IPD technology
  • Ultra-wideband band-pass filter based on IPD technology

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Embodiment Construction

[0029] In the description of the present invention, it should be understood that the terms "center", "portrait", "horizontal", "top", "bottom", "front", "rear", "left", "right", " The orientation or positional relationship indicated by vertical, horizontal, top, bottom, inner, outer, etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and The description is simplified rather than indicating or implying that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as limiting the invention. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0030] The applicant is based on the design criteria of the ultra-wideband bandpass filter listed below:

[0031] Center frequency: 1.14GHz;

[0032] Insertion loss: <1.5dB;

[0033...

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Abstract

The invention relates to an ultra-wideband band-pass filter based on an IPD technology. The ultra-wideband band-pass filter comprises a grounding metal layer, a substrate, a device layer, seven lumped inductors, seven lumped capacitors and two feed ports. The bottom of the substrate is connected with the grounding metal layer, the device layer is arranged at the top of the substrate, the seven lumped inductors and the seven lumped capacitors are all located on the device layer, and the two feed ports are located on the two sides of the substrate respectively and connected with the substrate. The device layer is provided with six grounding holes penetrating through the substrate, the first feed port is interconnected with the grounding metal layer through the first grounding hole and the second grounding hole, and the second feed port is interconnected with the grounding metal layer through the third grounding hole and the fourth grounding hole. The ultra-wideband filter not only has ultra-wideband characteristics and high selectivity, but also has good out-of-band rejection; the antenna has great advantages in a low-frequency-band application scene, and is simple in structure and easy to realize.

Description

technical field [0001] The present invention relates to the technical field of filters, in particular to an ultra-wideband bandpass filter based on IPD technology. Background technique [0002] Ultra Wide Band (Ultra Wide Band, UWB) technology is a wireless carrier communication technology using a frequency bandwidth above 1 GHz. Mainly used in military radar, positioning and low acquisition rate / low detection rate communication systems. Because UWB technology has the advantages of fast data transmission speed, simple system structure, low power consumption, and strong penetration ability, it has been widely studied in academia and industry. UWB filters can suppress harmonics in RF communication systems and ensure effective signal transmission. Therefore, UWB filters, as an important device in RF communication systems, need to meet performance requirements such as low insertion loss and high selectivity. Good or bad will directly affect the performance of the entire commun...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03H7/01H03H1/00
CPCH03H7/0115H03H1/00H03H2001/0021Y02D30/70
Inventor 陆旭兵刘福扩
Owner SOUTH CHINA NORMAL UNIVERSITY