Ying-song Li

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— A compact CPW-fed ultra-wideband antenna with dual band-notch characteristic is presented. Two notched frequency bands are obtained by embedding two U-shaped slots in the radiation patch and a rectangle slot in the ground plane. The two notched bands can be controlled by adjusting the length of the responding slots. The proposed antenna is successfully(More)
Along with the sharp increase of vehicle number in China, it is very important to realize the traffic safety, transportation efficiency and travelling comfort, especially on the highway. Leaky coaxial cable is widely used in mobile communication of some blind zone such as tunnels and underground areas, and there is another application of this cable: it can(More)
A wideband multi-sleeve dipole antenna for mobile communications applications was proposed with compact dimensions. The proposed antenna can cover GSM/DCS/WCDMA/CDMA2000/T D-SCDMA/ WLNA (2.4-2.48GHz) with VSWR less than 1.5 and better radiation characteristic. The band of multi-sleeve dipole antenna can be controllable. The impedance bandwidth and the(More)
A non-planar monopole antenna with orthogonal tapered rectangle, oblique shorted pins and loaded circular disc is investigated experimentally and numerically. The proposed antenna possesses more than 17:1 impedance bandwidth within the -10dB return loss bandwidth by using a coaxial fed, and an omn-idirectional radiation pattern is obtained. The antenna has(More)
This paper considers the non-fragile control problem for uncertain nonlinear sampled-data system and controller gain perturbations. Firstly, the continuous control plant of sampled-data system is transformed into a discrete system model with nonlinear. Then, the Lyapunov stability theory and the linear matrix inequality (LMI) approach are applied to design(More)
A dual-band tapered slot omni-directional antenna with an orthogonal arc-shaped parasitic element which covers GSM/DCS/PCS/CDMA2000/WCDMA/TD-SCDMA/WLAN/ WiMAX is realized experimentally. The proposed antenna consists of two shunted tapered slot antennas. The tapered slot antenna is an asymmetric structure which is made up of a straight line and an(More)
A coplanar wave guide (CPW)-fed ultra-wideband antenna with fork-like radiation patch is presented. The antenna consists of CPW ground with a wide slot, the fork-like radiation patch and the 50 Ω CPW fed structure. In this design, by adjusting the dimensions of the wide slot, a very wide impedance bandwidth has been produced. The detailed parameters(More)
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