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This paper presents planar multi-way bagley polygon (BP) power dividers (PDs) that can operate at two arbitrary frequencies. Design equations are derived mathematically, and practical issues in microstrip manufacture are discussed. 3-way and 5-way dual-band BP PDs are fabricated and measured for verification purpose. Good agreement between simulation and measurement results proves the validity of...
A novel planar crossover is proposed here to tackle the problem of RF-trace intersections. Analytical equations are derived based on the approach of even-odd mode analysis. Simulations are performed, and a crossover at 1 GHz is fabricated and measured as an example. The presented crossover has a bandwidth of 26.4% for 1 dB insertion loss and 20 dB isolation. Compared with the other designs, this planar...
The POP servers usually have overloaded burden in the current Video Grid. This paper puts forward a technique to import P2P mechanism into Video Grid to alleviate the burden of POP servers. PGVOD is proposed under this technique. It can send video streams buffered in client computers to other clients so as to alleviate the burden of POP servers, shorten the transmission path of video streams in network,...
Tor is the second generation onion router, supporting the anonymous transport of TCP streams over the Internet. Its low latency makes it very suitable for common Internet communication applications. So Tor has become the most successful public anonymity communication service in the Internet. In this paper, we investigate Tor design weaknesses. An adversary can use these weaknesses to attack Tor network...
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