The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 17, 2008
Filed:
Oct. 19, 2005
Applicants:
Anders Svensson, Djursholm, SE;
Jarmo Makinen, Vallentuna, SE;
Inventors:
Anders Svensson, Djursholm, SE;
Jarmo Makinen, Vallentuna, SE;
Assignee:
Powerwave Technologies Sweden AB, Taby, SE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01P 1/20 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention relates to a DC extracting arrangement in a RF filter used for extracting a DC voltage and/or a low frequency signal (DC/Com. signal) superimposed on a RF signal. The DC/Com. signal is extracted using a low pass filter which is arranged inside the first resonator inside the filter. Preferably, the low pass filter is a tubular filter. The invention also relates to a filter housing made from Zinc or Zinc alloy.