Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Filter arrangement, associated antenna arrangement and wireless device and associated filtering method

A filter and antenna unit technology, applied in antennas, waveguide devices, resonators, etc., can solve the problems of signal integrity limitation, signal separation far away, etc., to avoid combination effect, increase Q factor, and good recognition Effect

Active Publication Date: 2022-04-01
TELEFON AB LM ERICSSON (PUBL)
View PDF9 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The signal integrity aspect also limits the possibilities because the signals cannot be separated very far and because it is difficult to fit a sufficient number of ground connections in the small cell defined by the antenna

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
  • Filter arrangement, associated antenna arrangement and wireless device and associated filtering method
  • Filter arrangement, associated antenna arrangement and wireless device and associated filtering method
  • Filter arrangement, associated antenna arrangement and wireless device and associated filtering method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0040] Using PCB technology, resonant cavities can be realized by electromagnetically shielding parts of the PCB. By connecting a number of such resonant cavities together by holes or openings in the shield, a filtering function can be obtained in the PCB material. The hole in the topmost metallization layer can be configured as an antenna element. In this way, the filter and antenna elements can be integrated and share the same footprint on the PCB.

[0041]In this paper an integrated filter-antenna arrangement is proposed which provides both filtering and broadband matching functions for the antenna unit. The resonator types used for the filters are substrate-integrated waveguides or substrate-integrated cavities for TE201 and TE102 modes. They have better Q factors and are less sensitive to manufacturing tolerances than traditionally designed components in filters for antenna functions. By using TE201 and TE102 degeneracy, it is also possible to support two orthogonal po...

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 filter arrangement comprising three or more stacked metallization layers separated by printed circuit board PCB layers. Each metallization layer includes holes. The filter arrangement includes a plurality of vias extending through the stacked metallization layers and through the spaced apart layers of dielectric material, whereby the vias and the metallization layers define a cavity in each layer of dielectric material. The cavities in two successive layers of dielectric material are coupled by holes in a single metallization layer separating the two successive layers of dielectric material. The holes of the topmost metallization layer are arranged as antenna elements. The filter device comprises a conduit arranged to connect the at least one layer of dielectric material to the outside of the filter device.

Description

technical field [0001] The present disclosure relates to a filter device having metallization layers separated by layers of dielectric material. The filter arrangement may be integrated with the antenna unit for use in a wireless device. Background technique [0002] An antenna unit is a device configured to transmit and / or receive electromagnetic signals, such as radio frequency (RF) signals for wireless communication. A phased antenna array is an antenna comprising multiple antenna elements whereby the antenna radiation pattern can be controlled by varying the relative phase and amplitude of the signals fed back to the different antenna elements. [0003] The practical implementation of the signal filtering function of such an antenna unit is a challenging task. A high Q value, multiple resonators, and high precision are required to realize a filter with low loss and strong rejection of frequencies near the operating band where radio frequency (RF) power interference or ...

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): H01P1/208
CPCH01P1/208H01P1/2088H01P7/06H01Q15/24H01Q19/005H01Q21/005
Inventor A·德莱尼夫O·塔格曼
Owner TELEFON AB LM ERICSSON (PUBL)
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com