In this letter, a technique for the miniaturization of conventional printed quadrifilar helical
antennas using simple sinusoidal profiles is described and supported by experimental …

This letter addresses the miniaturization of the open-ended quadrifilar helical antenna for
satellite VHF frequency band telemetry links systems. The miniaturization is achieved using …

This paper addresses the miniaturization of the VHF band quadrifilar helix antenna. The
design and experimental validation are reported in this paper. Such a helix could be used …

Summary The Automated Identification System (AIS) was originally developed as a
terrestrial system tracking vessels near the coastline. Dedicated channels were allocated …

This study addresses the intrinsic limitations of the miniaturisation of very‐high frequency‐
band quadrifilar helical antennas. Several designs with a relative size (ie the ratio between …

In this paper, some of the most relevant patents of the last ten years on compact helical
antennas are reviewed. Different technical solutions and their respective advantages and …

In this communication, two very compact quadrifilar helix antennas were proposed in VHF
band. Significant height reduction is achieved with performances similar to the reference …

A compact quadrifilar helix antenna is presented in the VHF band. The design and
experimental validation on a low-cost realization are detailed in this paper. This design …

This papers addresses the miniaturization of quadrifilar helix antennas (QHAs) for space
application. An innovative miniaturization technique combining modified fractal curves and …

This paper reports on the outcome of a proof-of-concept activity, performed by Anywaves in
the frame of an ESA contract within the FutureNAV programme for the development of a LEO …