This paper presents a low VSWR high gain telemetry antenna system manufactured for UAVs that provides 360◦ coverage in the roll plane of the UAV. Proposed telemetry antenna system includes four telemetry antennas, one power divider that has one input and four output terminals which feeds the telemetry antennas with equal magnitude and phase. Proposed high gain telemetry antennas are based on th...

A novel compact wideband (2-12 GHz) Wilkinson equal power divider on microstrip line is proposed in this paper. In this paper, a novel approach to the design of a Wideband (2-12) power divider is presented. In order to achieve the wideband performance, the divider is established by introducing variable width of microstrip line between input lines to output lines of different impedance. Finally,...

Abstract—A folded printed quadrifilar helical antenna (FPQHA) with an integrated and compact feeding network is proposed. The axial length of the proposed antenna is miniaturized of about 54.7% than the conventional PQHA by folding the helix arms into several elements. A T-junction power divider combining with two Wilkinson power dividers is utilized to feed the antenna. A fabricated prototype ...

In this paper, we present two-way and four-way power dividers that operate in wideband over K-band. To maximize the integrability with other circuit blocks, the power dividers are designed in a purely digital CMOS technology without any RF back-end-of-line process. We discuss a design issue arising from the high loss of transmission lines in the digital process. A capacitor-loaded Wilkinson top...