CAVITY FILTER - ERICSSON TELEFON AB L M

Title:

CAVITY FILTER

Document Type and Number:

WIPO Patent Application WO2000038270

Kind Code:

A8

Abstract:

The present invention relates to a cavity filter (20) that includes a plurality of centre conductors which are mounted on an elevation (22) that extends along several cavities. The elevation can be produced on the bottom surface (23) of the cavity body (21) to a high degree of flatness in one single working step, and a precise measurement and precise parallelity between said bottom surface and the side walls (25) of the cavities can be obtained.

More Like This:

WO/2001/004987	METHOD OF PRODUCING A MICROWAVE FILTER, AND MICROWAVE FILTER PRODUCED ACCORDING TO THIS METHOD
WO/1988/001794	DUAL MODE WAVEGUIDE FILTER EMPLOYING COUPLING ELEMENT FOR ASYMMETRIC RESPONSE

Inventors:

HENNINGSSON BO UNO EGON
LIIKAMAA MATTI

Application Number:

PCT/SE1999/002415

Publication Date:

August 17, 2000

Filing Date:

December 17, 1999

Export Citation:

Click for automatic bibliography generation Help

Assignee:

ERICSSON TELEFON AB L M (SE)

International Classes:

H01P1/205; H01P7/04; (IPC1-7): H01P1/208; H01P7/06; H01P11/00

Download PDF:

View/Download PDF PDF Help

Previous Patent: LOAD RESPONSIVE AIR DOOR FOR A METAL-AIR CELL

Next Patent: ANTENNA ARRANGEMENT IN A METALLIC ENVIRONMENT