BROADBAND CLASS-J/F^-1 CONTINUUM MODE DESIGN UTILIZING HARMONIC EFFICIENCY SELECTIVITY CIRCUIT

Design of High Efficiency Broadband Adjusted Class AB Power Amplifier

Design 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 ...

Higher Efficiency Switching Mode Power Amplifier Design using the Third-Harmonic Peaking Turning Mode

This paper provides the design approach of one stage switching-mode based class F power amplifier (PA).The device’s nonlinear behavior was analyzed to reduce the dissipated power over the active device and therefore the PA efficiency was increase without having to compromise the power amplifier’s size. The load harmonics were controlled so that the drain voltage and the drain current do rarely ...

Design for broadband high-efficiency grating couplers.

In this Letter, we propose general optimization methods to design broadband high-efficiency grating couplers for planar waveguides. We attribute the coupling bandwidth to the mismatch of effective indices between the diffracted beam and the actual grating structure around the operation wavelength for fiber to waveguide excitation. The coupling bandwidth formula is deduced. A simple parameter-se...

Design of Broadband Microstrip Antenna Utilizing Genetic Algorithm

Genetic Algorithm combined with Finite Element software is applied to design a single-patch broadband microstrip patch antenna in this paper. The optimization procedure is also included. The broad-band character is realized by taking out some parts of the ordinary patch antenna. The reliability and efficiency of this method are proved by comparing the antenna proposed in this paper to un-optimi...