Results 21 to 30 of about 103,193 (347)
An 1 GHz class E LDMOS power amplifier [PDF]
33rd European Microwave Conference Proceedings (IEEE Cat. No.03EX723C), 2003 A class E power amplifier working at 1 GHz and with an LDMOS transistor as switching element has been developed.The circuit is implemented with lumped and distributed elements.An output power of 6.2 W at 69 %drain efficiency with a gain of 11 dB was obtained at 1 GHz.Both simulations and measurements of the amplifier are presented within this paper ...
Adahl, Andreas, Zirath, Herbert
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An LDMOS VHF class-E power amplifier using a high-Q novel variable inductor [PDF]
, 1999 In this paper, an lateral diffused metal-oxide-semiconductor-based very high-frequency class-E power amplifier has been investigated theoretically and experimentally.
Rutledge, David B., Zirath, Herbert
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A new series-L/parallel-tuned class DE-1 power amplifier
Dianzi Jishu Yingyong, 2018 This paper proposes a new series-L/parallel-tuned class DE-1 power amplifier. The theoretical analysis was conducted according to zero current switching(ZCS) and zero current slope switching(ZCSS) conditions.
Hua Zaijun +3 more
doaj +1 more source
Applied Sciences, 2021 This paper proposes an analytical expression set to determine the maximum values of currents and voltages in the Class-E Power Amplifier (PA) with Finite DC-Feed Inductance (FDI) under the following assumptions—ideal components (e.g., inductors and ...
Ingrid Casallas +4 more
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A 2.7-kW, 29-MHz class-E/F/sub odd/ amplifier with a distributed active transformer [PDF]
, 2005 A Class-E/Fodd high power amplifier (PA) using the distributed active transformer (DAT) is demonstrated at 29MHz. The DAT combines the output power from four VDMOS push-pull pairs.
Jeon, Sanggeun, Rutledge, David B.
core +1 more source
Output Power Control in Class-E Power Amplifiers [PDF]
IEEE Microwave and Wireless Components Letters, 2010 A technique is presented to facilitate power control of cascode class-E power amplifiers (PAs). It is shown that by controlling the signal applied to the gate of the cascode transistor, the transmit power is changed. The main advantage of the proposed technique is a high 36 dB output power control range (PCR) compared to 20 dB for the traditional ...
Sira, Daniel +2 more
openaire +1 more source
IEEE Access, 2022 This paper presents a wide-band multi-level switched mode class-E/F23 Power Amplifier (PA) with a reconfigurable power stage core transistor and a load with reconfigurable reactance compensation part.
Reza E. Rad +12 more
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A novel inverse class E power amplifier topology
2013 21st Signal Processing and Communications Applications Conference (SIU), 2013 In this work, a 10 Watt inverse class-E power amplifier has been proposed, simulated, realized and measured for the 2.7-2.9 GHz wireless applications. In the proposed power amplifier topology distributed elements were used instead of lumped elements and their widths and lengths were optimized with AWR Microwave Office.
Kizilbey, Neslihan, Kizilbey, Oguzhan
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Bifurcation analysis of stabilization circuits in an L-band LDMOS 60-W power amplifier [PDF]
, 2005 n this letter, the global stability analysis of an L-band push-pull power amplifier is presented. The analysis is carried out for the amplifier operating in different modes, such as Class AB, Class B, and Class E/F, considering variations in the bias ...
Rutledge, David B. +2 more
core +1 more source
Transformer based front-end for a low power 2.4 GHz transceiver [PDF]
, 2010 A low power transceiver architecture for the 2.4 GHz ISM band using a 1.0 V supply is presented. It employs a transformer to convert the 100 Ω antenna impedance to almost 1 kΩ and so facilitates a low power transmitter and receiver.
Delgado Restituto, Manuel +2 more
core +1 more source