Patent
Apparatus and method for matching harmonics
TLDR
In this article, an apparatus of a power amplifier is described, which includes an input boosting circuit configured to match a second harmonic input signal using a harmonic control circuit of an input stage to maximize an efficiency and an output power.Abstract:
An apparatus of a power amplifier is provided. The apparatus includes an input boosting circuit configured to match a second harmonic input signal using a harmonic control circuit of an input stage to maximize an efficiency and an output power, a die cell configured to receive and amplify an output signal of the input boosting circuit, and an output boosting circuit configured to receive an output signal of the die cell and to match a second harmonic output signal of the output signal of the die cell using a harmonic control circuit of an output stage to maximize the efficiency and the output power.read more
Citations
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Patent
Wireless power transmission with selective range
TL;DR: In this article, the authors describe a methodology for wireless power transmission based on pocket-forming, which may include one transmitter and at least one or more receivers, being the transmitter the source of energy and the receiver the device that is desired to charge or power.
Patent
System and method for controlling communication between wireless power transmitter managers
Douglas Bell,Michael Leabman +1 more
TL;DR: In this paper, a method for controlling communication between wireless power transmitter managers is disclosed, where a WiFi connection may be established between WPT managers to share information between system devices, and a WPT manager may need to fulfill two conditions to control power transfer over a customer device; customer device's signal strength threshold has to be significantly greater than 50%, such as 55% or more of the signal strength measured by all other wireless power transmitters and has to remain significantly higher than 50% for a minimum amount of time.
Patent
Receivers for Wireless Power Transmission
TL;DR: In this article, the authors provide various electric receiver arrangements which may be used to provide wireless power transmission using suitable power transmission techniques such as pocket-forming, where receivers may include at least one antenna connected to at least two rectifiers and one power converter.
Patent
Portable wireless charging pad
TL;DR: In this article, a method and apparatus for improved wireless charging pads for charging and/or powering electronic devices is presented, which does not require a power chord for connecting to a main power supply, for example a wall outlet.
References
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Patent
High-frequency power amplifier
TL;DR: In this paper, a high-frequency power amplifier is configured so that each of the signal paths includes the same number of stages of power amplification transistors and impedance matching circuits, and each stage includes different sizes of transistors.
Patent
High frequency power amplifier
TL;DR: In this paper, the authors proposed a high frequency power amplifier with which power efficiency is hardly lowered by a higher harmonic component, and the basic circuit configuration itself is equal to a conventional power amplifier, and hence a design change is facilitated and power efficiency can be improved without requiring further cost.
Patent
Rf power transistor packages with internal harmonic frequency reduction and methods of forming rf power transistor packages with internal harmonic frequency reduction
Donald Farrell,Simon Wood +1 more
TL;DR: In this article, the authors present a package that houses the transistor and the harmonic reducer, with the input lead and the output lead extending from the package to ground for signals at an Nth harmonic frequency of the fundamental operating frequency.
Patent
High-frequency power amplifier
TL;DR: In this paper, a configuration is provided with: a tuned line 13 that is connected between a branch terminal 3 and the branch terminal of branch lines 2 and 4; and a tuning line 14 that is connecting between a combining terminal 7 and a combine terminal 9 of combining lines 10 and 11, enabling reduction of a non-uniform voltage distribution occurring due to a difference in characteristics between two amplifier elements.
Patent
Doherty amplifying apparatus using a harmonic control circuit
TL;DR: A Doherty power amplifying apparatus as mentioned in this paper includes a harmonic-controlled Doherty amplifier (606,607); and an input matching unit (602,604) and an output matching unit(612,614) for input matching and output matching the harmonic controlled Doherty amplifiers, respectively.