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An integrated design of a band-pass filter and a patch antenna is proposed in this paper by using an aperture coupled structure. Traditionally, the microwave filter and antenna are designed separately using 50 Ohm interface and then connected by transmission lines, which lead to a large size and more loss. Here, the antenna and microwave filter are directly integrated without a 50 Ohm interface between...
A monopole UWB antenna with band-notched function is presented. The proposed antenna consists of a modified rectangular radiator and a truncated ground plane. To generate a notch around 5.5GHz WLAN band, a quarter-wavelength shorted parallel coupled strip is attached to the feed line. With those designs, the antenna yields an impedance bandwidth of 2.8 to 13.1 GHz (VSWR < 2), while showing rejection...
We demonstrate experimentally penalty-free transmission of 127-Gb/s coherent PM-QPSK signals through 10 cascaded 50-GHz commercial WSS over 1500-km SMF. Simulation results show that more than 40 cascades of such 50-GHz liquid-crystal based WSS is feasible.
This paper considers the problem of optimal and competitive wireless access for data streaming over vehicle-to-roadside (V2R) communication. In a service area, the onboard units (OBUs) in vehicles use wireless access to download streaming data from the roadside units (RSUs). The downloaded streaming data can be stored in proxy buffer for the application to playout. The wireless access can be in reservation...
The proliferation of mesh or ad hoc network protocols has lead to a push for protocol standardisation. While there are a number of both open-source and proprietary mesh routing protocols being developed, there is only a small amount of literature available that shows relative strengths and weaknesses of different protocols. This paper investigates the performance of a number of available routing protocols...
Measuring corona discharge current directly on the high-voltage side is essential for the discharge mechanism research of the test object. The amplitude of the corona discharge current is in microamperes, and its frequency ranges from DC to megahertz. An optical microcurrent transducer for measurement of the current is described in this paper based on an amplitude modulation principle. A low-pass...
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