impedance
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The Art of UHF RFID Antenna Design: Impedance Matching and Size-Reduction Techniques
White Paper The electromagnetic research mainly concerns the design of tag antennas having high efficiency and small size and suited to complex impedance matching to the embedded electronics. Radio Frequency Identification... [15 Apr 2009]
Dual-Band Dipole Antenna for RFID Tag Applications
White Paper Several properties of the proposed antenna for dual-band operation such as impedance bandwidth, radiation pattern and measured gain have been investigated numerically and experimentally in detail. New design of a dipole... [14 Apr 2009]
A Novel Compact Cable-Fed Antenna for a GSM/DCS Handset
White Paper The designed antenna has dimensions of only 40 12 1 mm and the impedance bandwidth of the proposed antenna is able to cover the GSM, DCS, and PCS bands. By using a branch-line ground plane, a monopole radiator, and... [31 Jan 2009]
A Wave-Guide Model for Packetized Media Streaming in Lossless Networks
White Paper This paper extends the bundled packet level perspective towards the macroscopic level of propagation dynamics focusing on the impedance that observed packets experienced during propagation using the analogy of particles... [22 Oct 2008]
A Novel Microstrip Patch Antenna With Large Impedance Bandwidth in VHF/UHF Range
White Paper This antenna, employing microstrip circular disc as radiator is seen to perform over a large impedance bandwidth (130MHz to 876 MHz). In this paper a novel antenna is presented. The disk resonator is loaded with L-C-R... [11 Jul 2008]
A Full Bandwidth Calibrator for a Sound Pressure and Particle Velocity Sensor
White Paper This is done by calculating the acoustic impedance at a certain distance of a spherical loudspeaker. In literature it is shown that it is possible to calibrate a sound pressure and a particle velocity sensor in the free... [08 Jul 2008]
A Compact Multi Band PIFA for Wireless LAN Mobile Terminals
White Paper The broad impedance bandwidth is achieved by combining a trapezoidal feed plate with two different resonance paths in the radiating patch. A novel compact Planar Inverted-F Antenna (PIFA) for laptop computers is presented. [06 Dec 2007]
Development of a Single-Chip RF Front-End LSI for Wireless LAN With Transmission Line Based Matching Circuits
White Paper In order to reduce the chip size, on-chip CPW lines has been employed to realize on-chip impedance matching circuits which saves 30-40% chip area than those using the spiral inductors. In Direct Conversion Receiver (DCR)... [06 Dec 2007]
The ADO.NET Entity Framework: Making the Conceptual Level Real
White Paper This paper describes the ADO.NET Entity Framework, a platform for programming against data that raises the level of abstraction from the logical (relational) level to the conceptual (entity) level, and thereby significantly reduces the... [04 Jul 2007]
XQueryP: An XML Application Development Language
White Paper Operating on XML data with a traditional programming language leads to a serious "Impedance mismatch" because the type system of the programming language is not based on XML. This paper explores ways of eliminating this... [15 Jun 2007]
JBoss CEO criticises "riot mentality" around possible buyout
News Fleury said there is an "impedance mismatch" between JBoss and companies such as BEA Systems, IBM and Oracle, which rely on license revenue from closed-source Java middleware and, in general, do not give customers access... [04 Apr 2006]
Printed Straight F Antennas for WLAN and Bluetooth
White Paper Reasonable impedance bandwidth and good range of coverage are found. Miniaturized printed-circuit-board antennas are proposed in PCMCIA cards for WALN and Bluetooth applications. The proposed antenna is a straight F in... [11 Aug 2005]
