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. 25, 2019
Filed:
Jul. 11, 2016
Qorvo Us, Inc., Greensboro, NC (US);
Donald L. Allen, Richardson, TX (US);
Qorvo US, Inc., Greensboro, NC (US);
Abstract
A programmable RF attenuator having a first connection node and a second connection node is disclosed. The programmable RF attenuator provides RF attenuation between the first connection node and the second connection node based on at least a first attenuation control signal. The programmable RF attenuator includes a first RF attenuator circuit and a first reactance compensation circuit, such that the first RF attenuator circuit includes a first shunt transistor element and a first shunt resistive element, which is coupled to the first shunt transistor element. The first shunt transistor element receives the first attenuation control signal. The first reactance compensation circuit is coupled to the first RF attenuator circuit and at least partially compensates for reactive characteristics of the programmable RF attenuator that affect an attenuation flatness of the programmable RF attenuator.