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This letter reports the concept and development of the first optically controlled reconfigurable antenna for millimeterwave (mm-wave) applications. It is based on a slotted-waveguide antenna array and two photoconductive switches, which are used to control the slot electrical length. This novel photonics-based reconfigurable strategy enables frequency tunability and radiation pattern reconfiguration through the 28-and 38-GHz frequency bands. Numerical simulations and experimental results illustrate its applicability for mm-wave indoor applications. The measured gain is approximately 8.0 and 9.0 dBi at 28 and 38 GHz, respectively.

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This paper shows how the existing concepts of conformance testing can be used to define a formal framework for interoperability testing. First, the different possible interoperability testing architectures are discussed. Then, we define several interoperability relations based on the existing relations defined for conformance testing. A comparison of these relations is given, in terms of their power to detect non-interoperability. Some guidelines are given to help in generating interoperability tests.