On the huge-scale array antenna for SSPS (space solar power systems), the problem of faulty elements and effect of mutual coupling between array elements should be considered in practice. In this paper, the effect of faulty elements as well as mutual coupling on the performance of the huge-scale array antenna are analyzed by using the proposed IEM/LAC. The result shows that effect of faulty ele...

In this paper we analyze the impact of mutual coupling on MIMO channel capacity, considering its effect on both, signal and thermal noise. We calculate noise correlation matrix in the multi-antenna system with closely spaced antennae by applying the Nyquist’s thermal noise theorem. Then, we employ noise correlation matrix in channel capacity formula, that enables the identification of thermal n...

Maintaining mutual coupling suppressing structure as simple as possible is becoming attractive in the electromagnetic and antenna community. A novel parasitic patch structure that can reduce mutual coupling between cavity-backed slot antenna elements is proposed and studied. The structure consists of only a simple rectangular patch inserted between the antenna elements, and it is therefore low ...

There have beem many studies on the analysis and design of low-noise oscillators. Recently, much attention has been paid to the noise reduction technique using coupled oscillators. When oscillators are coupled, the coupling method is very important and affects various factors, for example, the level of noise. In this study, we analyze the phase noise of multiphase CMOS LC oscillators coupled by...

We study the mutual coupling of chaotic lasers and observe both experimentally and in numeric simulations that there exists a regime of parameters for which two mutually coupled chaotic lasers establish isochronal synchronization, while a third laser coupled unidirectionally to one of the pair does not synchronize. We then propose a cryptographic scheme, based on the advantage of mutual couplin...

Tills paper presents a study of mutual coupling between Lil'cu!ur!y polarised electromagnesicolty coupled pa/dl (CP-EMCI') antennas. Two types 0/ antennas having different high dielectric constants driven laver have been addressed. In addition 10 compariSO/l of mllillil! coupling !>e/ween CP-EMCP antennas. comparisons have been made 10 three references. one 0/ which is the recently reported mut...

MIMO wireless systems employing antenna arrays with close inter-element spacings exhibit a high degree of mutual coupling. In this case, the channel transfer matrix is a function of the matching network employed at transmit and receive. Existing capacity expressions are inappropriate, since the maximum mutual information will depend on antenna element loading. This paper develops a new expressi...

We analyze reflexive photorefractive coupling of an information-bearing beam carrying several distinct spatiotemporal features, with emphasis on the coupling-induced change in the mutual spatial coherence. We formulate equations describing evolution of the mutual correlation functions between different features and discuss their solutions both in the full two-dimensional case and in the limit l...

This thesis presents research on methods for calculating the mutual coupling between antennas. The mutual coupling between antennas is a measure of the amount of energy transmitted from one antenna that is received by another, and is a key parameter when installing antennas on platforms, such as aircraft. To avoid interference between systems connected to the antennas, the mutual coupling shoul...