Since the invention and further development of lasers in the 1960s, photonics has grown
into a field that permeates virtually every aspect of modern life. As photonics deals with the …

Some confusion in the literature is clarified regarding the properties of microstrip‐line higher
modes in the neighborhood of cutoff. It is shown that those modes become leaky in that …

This communication demonstrates for the first time the capability to independently control the
real and imaginary parts of the complex propagation constant in planar, printed circuit board …

This paper presents a novel, easy-to-fabricate and operate, single-layer leaky-wave antenna
(LWA) that is capable of digitally steering its beam at fixed frequency using only two values …

For many leaky-wave antennas (LWAs), it is challenging to realize beam scanning through
broadside. A problem is the presence of an open stopband (OSB), which restricts radiation …

Some confusion in the literature is clarified regarding the properties of microstrip line higher
modes in the neighborhood of cutoff. It is shown that those modes become leaky in that …

A survey is given of the so-called spectral-domain approach, an analytical and numerical
technique particularly suited for the solution of boundary-value problems in microwave and …

Leaky travelling wave antennas that use the first microstrip higher-order mode are analysed.
The antennas investigated here are only half the width of previous leaky wave designs and …

Wideband microstrip leaky-wave antennas (LWAs) that radiate two symmetrical side beams
are described. The two beams are steered simultaneously by sweeping the operating …

Ohne die hauptsächlich in diesem Jahrhundert gewonnenen Errungenschaften der
Hochfrequenztechnik zB auf dem breiten Gebiet der gesamten drahtlosen …