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The basic operating principle and structural characteristics of traditional Printed IFA (Inverted-F Antenna) are discussed in this paper. And the way of traditional Printed IFA's design has been introduced in detail. An antenna prototype with a small area on a phone board which with Bluetooth tool has been constructed, analyzed and improved with the software HFSS 10.0 of ANSOFT Corporation. The improved...
In order to make full use of multi-IO signals to control equipments, a new type of universal IO controller based on Windows CE and C# is developed. It uses ARM9 as microprocessor, Windows CE as operation system and C# as programming language, and the multi-IO interfaces are extended by means of a simplified ISA bus and a FPGA chip. Two working modes are realized, local manual control and remote command...
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