Software-defined radio with broadband amplifiers and antenna matching

DV Gupta - US Patent 9,020,449, 2015 - Google Patents
Mobile phone handsets include a CMOS frontend configured for operating across multiple
transmit and receive frequen cies. The front end typically includes multiple receivers, each …

Load impedance detection

PJ Shah, A Mehrabi - US Patent App. 13/434,158, 2013 - Google Patents
0005. In the art of electronic circuit design, amplifiers may often be designed to drive loads
having indeterminate imped ances. For example, an audio power amplifier may be required …

Digital controlled oscillator and switchable varactor for high frequency low noise operation

G Rajendran, R Kumar, S Mukherjee… - US Patent …, 2017 - Google Patents
Low noise Switchable varactors and digital controlled oscil lator (DCO) circuitry are
presented for creating alternating signals at controlled frequencies, including a first transistor …

Active-by-active programmable device

AS Kaviani, P Maidee, I Bolsens - US Patent App. 16/891,972, 2022 - Google Patents
An example integrated circuit (IC) system includes a package substrate having a
programmable integrated circuit (IC) and a companion IC mounted thereon, the …

Circuits, devices and methods related to antenna tuner

PJ Lehtola - US Patent 11,711,057, 2023 - Google Patents
Circuits, devices and methods related to antenna tuner. In some embodiments, an antenna
can be tuned by amplifying a signal for transmission by operating a transistor with a base …