The printed microstrip-line-fed broadband slot antenna is investigated in this paper. With the use of the offset microstrip feed line and the corner-truncated protruded ground plane, the bandwidth enhancement and the size reduction for the proposed slot antenna can be obtained. From experimental results, the measured impedance bandwidth, with a 10-dB return loss, can be up to 5210 MHz (108.2%) which is about 2.67 times of a conventional printed microstrip-line-fed rhombus slot antenna. Under the use of the protruded ground plane, antenna size can be reduced by about 52%. By selecting proper parameters of the proposed slot antenna, it can provide with the wireless communication services operating at WLAN/WiMAX bands.Index Terms -slot antennas, microstrip-line-fed, compact, broadband.

With the growing of Internet service and users, multimedia video streaming application becomes more popular. There are two limitations: limited bandwidth affects high quality video delivery and high bit error ratio reduces system throughput. A packet with bit error is dropped in transport layer. H.264/AVC support high coding efficiency and network friendly. UDP-Lite is an idea that by pass packet with error bit to application layer. In this paper, we propose multimedia network ASIC that uses slice priority of NAL and partial checksum technique. Resolving two limitations, our ASIC can adaptive limited bandwidth to reduce packet loss and reduce packet drop in high bit error ratio environment that improves system throughput. Therefore, the ASIC increase transmission ability and network friendly for H.264/AVC codec. As post-layout simulation result shows, the ASIC operates at 455.5 MHz. The area is 0.337 x 0.315 mm 2 and power consumption is 985.5679 uW. The system throughput achieves 14.58Gbps so that satisfies 10 Giga bit Ethernet.