A compact wideband 90° differential phase shifter is developed by modifying ports
termination in the Abbosh phase-shifter configuration. This novel phase-shifter arrangement …

This paper presents an all-passive, 4-element, phased-array beamformer based on a
differential, reflection-type phase shifter (RTPS) operating in the 60GHz band. The RTPS …

Generalized methods for the design of quasi-ideal symmetric and asymmetric coupled-line
sections have been proposed. Two cases of coupled-line sections, in which the inductive …

Microwave quadrature couplers and out-of-phase power combiners/dividers are in many
aspects crucial devices and are used in many microwave subsystems, such as mixers …

Abstract Design of directional couplers in an inhomogeneous suspended stripline dielectric
structure has been comprehensively investigated. A new design procedure of coupled‐line …

This paper presents the directivity and isolation enhancement technique of a three-section
coupled line 10dB directional coupler as an extension of single and double inductive …

In this paper, analysis and design of a 3-dB 90^∘ directional coupler operating in S-band is
proposed. The coupler employs symmetrical multi-section coupled lines designed in a strip …

With the increase in demand for compact and high data rate communication systems, there
is a need for high efficiency with modulated signals (PAPR 5-10 dB) for base-station power …

In this paper, the design of 4 x 4 Butler Matrix (BM) for 5.4-5.7 GHz frequency band is
presented. The microstrip-slot technology is used in the BM circuit. The technology employs …