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A miniature independent dual-band hybrid dielectric resonator antenna fed by a coplanar waveguide inductive slot is proposed. In this configuration, the CPW inductive slot performs the functions of an effective radiator and the feeding structure of the DR. By optimizing the structure parameters, the hybrid structure resonates at two different frequencies independently. One is from the DRA with the...
This paper deals with performance evaluation of IT (information technology) products. We adopt the data envelopment analysis (DEA) approach to explore the relative efficiencies among IT products. Notebook computers are used as our study vehicle. According to the usage and applications of notebook computers, we consider four types of scenarios: commuter, home user, student user, as well as traveler...
In this paper, a new CPW-fed monopole antenna is demonstrated and loaded with a cylindrical ceramic dielectric piece. With this ceramic dielectric piece loaded on the radiator of the monopole, a dual-band operation is generated in a single antenna. The proposed antenna can easily be excited by a 50-Omega CPW line and a tuning metal strips etched on the back side of the dielectric piece, good impedance...
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