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:
Oct. 10, 2017
Filed:
Jun. 16, 2016
Peregrine Semiconductor Corporation, San Diego, CA (US);
Neil Calanca, Coral Springs, FL (US);
Peregrine Semiconductor Corporation, San Diego, CA (US);
Abstract
An amplifier circuit having an improved inter-stage matching network and improved performance. In one embodiment, an RF signal source having an output impedance Zis approximately impedance matched through an inductive tuning circuit to a power amplifier having an input impedance Z. The inductive tuning circuit includes a tunable capacitor element Cand inductive elements L, L, which may be fabricated as stacked conductor coils. Since the capacitance of Cis tunable, impedance matching is available over a broad range of RF frequencies. Also provided are DC isolation between the RF signal source and the power amplifier, coupling of a voltage source to the output of the RF signal source through L, and coupling of a bias voltage to the input of the power amplifier through L