Comments on a doctoral dissertation by Uta Kresse Raina

Doctoral Dissertation

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Doctoral Dissertation

The construction of a low-cost and reliable array antenna system is required to facilitate the practical use of the adaptive antenna in the mobile communication field. The array antenna system can be verified by DOA (Direction of Arrival) estimation. This dissertation describes the attempt to achieve a high-precision adaptive antenna and the examination of this device, which suppresses the numb...

Review of Doctoral Dissertation

DOCTORAL (PhD) DISSERTATION THESES

Scaled Microdisk Lasers a Doctoral Dissertation

Microdisk lasers, based on whispering gallery optical resonances, have recently attracted considerable attention. The interest in microdisk lasers is driven by, amongst other factors, their potential for low-threshold power, ease of fabrication and in-plane emission characteristics. However, there are a few key challenges that need to be overcome for these devices to become practical, chief amo...