Dual-band bandpass filters using novel stub-loaded resonators (SLRs) are presented in this
letter. Characterized by both theoretical analysis and full-wave simulation, the proposed …

This survey addresses the cutting-edge load modulation microwave and radio frequency
power amplifiers for next-generation wireless communication standards. The basic …

A design methodology for a concurrent dual-band Doherty power amplifier (PA) with
frequency-dependent backoff power ranges is presented in this paper. Based on a dual …

This study constructs stepped-impedance-stub lines for a dual-band branch-line coupler
design with improved design flexibility. The proposed structure demonstrates dual-band …

In this paper, the design, implementation, and experimental results of a high-efficiency dual-
band GaN-HEMT Doherty power amplifier (DPA) are presented. An extensive discussion …

A concurrent dual-band uneven GaN Doherty power amplifier (PA) for two wide-spacing
frequencies application is proposed in this paper. To avoid an early load modulation-drop …

Branch-line and rat-race couplers are designed to have dual-band operation with arbitrary
power division ratios. An elementary two-port is proposed to imitate the 90 deg section at the …

This paper presents a novel technique for decoupling of two closely spaced dual-band
antennas using T-stub circuits. A decoupling circuit consists of three T-stub elements, each …

The introduction of new technology in the wireless communication industry increases the
number of frequency bands in the communication environment. Therefore, a communication …

This paper presents several novel centrally loaded resonators and their applications to
various types of bandpass filters. Based on the theoretical analysis, it is found that the even …