This paper presents a 324-element 2-D broadside array for radio astronomy instrumentation
which is sensitive to two mutually orthogonal polarizations. The array is composed of …

A novel Vivaldi antenna structure is proposed to broaden the bandwidth of the conventional
ones. The theory of the equivalent circuit is adopted, and it is deduced that the bandwidth of …

A postwall slotline (PWS), composed of a bilateral slotline and two metalized via arrays
aligned at the slot edges, is proposed and its application in the design of short-pulse tapered …

This paper presents a new miniaturized planar Vivaldi antenna (PVA) design. The proposed
antenna structure consists of an aperture tapered profile and cavity stub fed with a simple 50 …

Over the last two decades there has been an increasing interest in planar antennas for
microwave and millimetre-wave systems. The various kinds of planar antennas presently in …

Radar operation from the CReSIS Meridian UAV requires a broadband antenna array
composed of lightweight, thin, end-fire antenna elements. Toward this goal four Vivaldi …

对高功率超宽谱双反射面天线系统进行了优化改进设计, 兼顾辐射性能, 馈入反射和功率容量.
采用沿能流线设计的“粗胖” 实体结构代替板状TEM 喇叭极板结构, 增加低频电流的回流通道 …

Notch antennas, also known as the tapered slot antenna (TSA), have been the topics of
research for decades. TSA has demonstrated multi-octave bandwidth, moderate gain (7 to …

A wideband slot antenna array with via-wall structure is proposed and investigated. Two
array arms, with each arm formed by several in-line series elements with square geometry …

The work described in this thesis concerns the combining of wideband and reconfigurable
narrow band functionality into a single antenna. This concept may be useful in reducing size …