A novel circularly polarized cylindrical dielectric resonator antenna excited by an external
tape helix is presented. The helix is fed by a coaxial line through a small hole on a finite size …

A compact near-field resonant parasitic (NFRP) slot helix antenna with wide axial ratio
bandwidth is developed in this Letter. The developed antenna consists of one hemispherical …

Fabrication of a non-planar helical antenna while maintaining mechanical stability and
durability is always challenging. Moreover, impedance matching is an issue for helix-type …

In this letter, we use a helix to excite two orthogonal HE 11δ modes in phase quadrature in a
hollow cylindrical dielectric resonator antenna to generate circular polarization. As …

A lossy ferrite core/dielectric shell structure effectively miniaturizes an axial-mode helical
antenna (AM-HA) without sacrificing the antenna gain in the range of 2.85–3.45 GHz. Co 2 Z …

Stacking method is used to enhance the 3 dB axial ratio and impedance bandwidth of the
circularly polarized cylindrical dielectric resonator antennas excited by an external tape …

In this paper, an ultra-wideband hemispherical helical antenna with a novel flake-like arms
structure is proposed. The proposed hemispherical helical antenna has better impedance …

The antenna is an integral part of any wireless communication system that is primarily used
for transmitting and receiving radio frequency signals. There are various types of antennas …

研究了一种等弧距单臂半球柱面螺旋天线, 其具有宽带, 小尺寸, 圆极化, 低剖面等特点.
该天线采用半球柱面螺旋天线结构, 通过在馈电端引入等效L 节匹配网络进行阻抗变换 …

This paper reports design and performance comparison of an air core and ferrite core
loaded axial mode helical antenna for completely filled cylindrical water pipe network at 5 …