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The paper has achieved a more efficient narrow-band filter for multi-notch ultra-wideband antenna in the case of international spectrum resource constraints. The paper is improving to the original design multi-notch ultra-wideband antenna. The way of coplanar-waveguide (CPW) coupled-fed have achieved band widening. The antenna has a large bandwidth covering the frequency band from 2.4GHz∼15.1GHz with...
A coplanar waveguide (CPW) fed circular ring ultra-wideband (UWB) monopole antenna with tri notched band is presented numerically. The tri-notched bands have been proposed by using two fold slots and a T-shaped tuning stub in the inner of the circular ring. The tri-notch band properties can be controlled by adjusting the length of the slots and the dimensions of the T-shaped tuning stub. The parameters...
This paper describes the design of a novel ultra-wideband (UWB) antenna for UWB applications. The design is based on planar rectangular monopole microstrip antenna. The optimum antenna geometry is obtained by computation calculation, and the results were simulated by using electromagnetic simulation software CST MWS(CST microwave studio). The results show that the microstrip antenna can get in the...
A CPW-fed wide band antenna is presented for WLAN/WiMAX/UWB applications. The proposed antenna comprises two umbrella printed dipoles which can produce two resonance frequencies. The antenna was printed on a substrate with compact dimension of 20mm×30mm×1.6mm and relative dielectric constant of 2.65. The key parameters are simulated, analyzed and optimized using High Frequency Structure Simulator...
A microstrip-fed ultra-wideband monopole antenna with two stop bands is presented. The impedance bandwidth is broadened by etching a “gong”-shaped slot in the ground plane. Two stop frequency bands are obtained by embedding two rectangle slots in the ground plane and a stub in the radiation patch. The two notched bands can be controlled by adjusting the length of the responding slot and the dimension...
Recently, leaky coaxial cable plays a more and more important role in every kind of blind or semi-blind zone mobile communication, and along with the increase of communication business, the number of frequency band increases, lager communication capacity is needed, so it is necessary to extend the frequency band of leaky coaxial cable. The method of extending the frequency band of leaky coaxial cable...
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