We report the design of microwave waveguide devices based on complementary media. Various kinds of waveguide devices that possess nearly 100% transmission efficiency are proposed, such as waveguide bends, splitters, connectors, and shifters. Compared with previous work on waveguide devices of low reflection and minimized distortion based on transformation optics, our transform media are homogen...

(EEEL) encompass nearly all key disciplines in electrical, electronic, electromagnetic, and electro-optic materials; components; instruments; and systems, with an emphasis on metrology. The Laboratory has laboratories in Gaithersburg, Maryland and Boulder, Colorado; its annual budget is approximately $80 million. EEEL's programs encompass measurements and related research in the following areas...

We propose a tunable microwave device consisting of a Gunn diode with time–delay feedback, which will emit chaotic microwaves. The wavelength is controlled by two incident laser beams which trigger moving multiple Gunn domains. Predicted phenomena include the coexistence of stationary and chaotic states, complicated hysteresis loops, and persistent bistabiliy. This device is potentially useful ...

In recent years, there has been tremendous progress in the miniaturization of optical devices. Planar waveguides and photonic crystals are currently key technologies enabling a revolution in integrated optical components. The size and density of optical devices employing these technologies is nonetheless limited by the diffraction limit of light, which imposes a lower size limit on the guided l...

The state of the art of microwave ferrite technology in Russia is reviewed. The paper gives some generalization with respect to the future progress in the field, where the one of major tasks is likely to be a development of specialized gyromagnetics for mmand sub-mm-range devices. The present state of the art and trends in developmenl. of microwave ferrites in Russia are shown via analysis of c...

The 2.4 GHz frequency band is used by various devices, including WiFi, microwave ovens and Bluetooth. For WiFi devices, it is desirable to have information about occupancy of the spectrum available to select optimal channels and to predict link performance. As only few devices are capable of acquiring such information, devices may share it. However, using these information only makes sense if t...

Testing of on-chip RF and microwave circuits has always been a challenge to the test engineers. Since the emergence of System-on-a-Chip (SoC), characterization and test development is time-consuming and they contribute to a significant part of the manufacturing cost. Moreover, test development of RF and microwave circuits requires years of experience and expertise. In this paper, we propose to ...

The spectacular progress in the eld of ultracold quantum gases is intimately connected with the availability of sophisticated techniques for quantum-level control of internal states, motional states, and collisional interactions. Atom chips provide such control in compact, robust, and scalable setups, which makes them attractive for both applications and fundamental studies. In this thesis I re...