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:
Aug. 28, 2012
Filed:
Aug. 31, 2010
Ikuroh Ichitsubo, Sagamihara, JP;
Kanya Kubota, Higashi-Omi, JP;
Shigeru Watanabe, Mitaka, JP;
Brian Michael Wang, Palo Alto, CA (US);
Ikuroh Ichitsubo, Sagamihara, JP;
Kanya Kubota, Higashi-Omi, JP;
Shigeru Watanabe, Mitaka, JP;
Brian Michael Wang, Palo Alto, CA (US);
Micro Mobio Corporation, Palo Alto, CA (US);
Abstract
A radio frequency (RF) amplifier circuit includes a first impedance matching circuit configured to receive an input RF signal, a control circuit configured to produce a band control signal according to the frequency of the input RF signal, an RF amplifier having its input connected to the first impedance matching circuit. The RF amplifier can produce an amplified RF signal in response to the input RF signal. A second impedance matching circuit can receive the amplified RF signal from the RF amplifier. At least one of the first impedance matching circuit and the second impedance matching circuit has an impedance that is adjustable by the band control signal. A multi-band filter can switch the amplified RF signal from the second impedance matching circuit to one of selectable narrow-band filters in response to the band control signal.