Inverse Class-F Power Amplifier Using Slot Resonators as a Harmonic Filter
نویسندگان
چکیده
In this contribution, an inverse-class-F (F -1 ) power amplifier at 1.7 GHz using GaN device is proposed and experimentally tested. The novelty in the design is the use of a three-layers rectangular slot resonators in microstrip line’s ground plane as harmonic filter. In particular, a planar periodic structure composed by two different slot resonators is used to control 2 nd , 3 rd harmonics and to match to 50 the fundamental frequency. Experimental results shows 60 % of drain efficiency and roughly 4 W of output power with 13 dB of associated gain. Index Terms Class F, Inverse class F, Microstrip Slot, Power amplifiers.
منابع مشابه
A Sub-µW Tuneable Switched-Capacitor Amplifier-Filter for Neural Recording Using a Class-C Inverter
A two stage sub-µW Inverter-based switched-capacitor amplifier-filter is presented which is capable of amplifying both spikes and local field potentials (LFP) signals. Here we employ a switched capacitor technique for frequency tuning and reducing of 1/f noise of two stages. The reduction of power consumption is very necessary for neural recording devices however, in switched capacitor (SC) cir...
متن کاملDesign of Broadband Highly Efficient Harmonic-Tuned Power Amplifier Using In-Band Continuous Class(-1)/F Mode Transferring
A novel methodology for designing high-frequency broadband harmonic-tuned power ampli ers (PAs) is presented in this paper. Speci cally, a hybrid PA mode, transferring between continuous inverse Class-F and continuous Class-F, is for the rst time employed to design PAs with optimal performance over more than-an-octave bandwidth. A GaN PA is designed and realized based on this mode-transferring ...
متن کاملSecond Harmonic Reduction of Traveling Wave Tube Amplifier Using Ferrite Material
Traveling Wave Tubes (TWTs) consist of different elements. The most important element of TWT is the RF circuit. RF circuits in helix TWTs need a dielectric support to hold the helix; this support also has an effect in electromagnetic properties of RF circuits. A novel dielectric support is proposed to reduce the second harmonic of helix TWTs. The dielectric support in this structure consists of...
متن کاملA Class E Power Amplifier with Low Voltage Stress
A new output structure for class E power amplifier (PA) is proposed in this paper. A series LC resonator circuit, tuned near the second harmonic of the operating frequency is added to the output circuit. This resonator causes low impedance at the second harmonic. The output circuit is designed to shape the switch voltage of the class E amplifier and lower the voltage stress of the transistor. T...
متن کاملA Harmonic Synchronized Oscillator using Gunn Diodes Embedded on Slot Line Resonators
This paper represents a novel second harmonic power combining oscillator using mutually synchronized Gunn diodes embedded on slot line resonators. A both-sided MIC technology is adopted in the oscillator. The oscillator consists of Gunn diodes, slot line resonators and microstrip lines. By embedding Gunn diodes on slot line resonators, desired harmonic RF signal can be generated very easily. Th...
متن کامل