This paper presents air gap aperture coupled microstrip antenna for dual-band operation over the frequency range of (2.9 to 6.0 GHz). This antenna differs from any other microstrip antenna with their feeding structure...This paper presents air gap aperture coupled microstrip antenna for dual-band operation over the frequency range of (2.9 to 6.0 GHz). This antenna differs from any other microstrip antenna with their feeding structure of the radiating patch element. Input signal couples to the radiating patch trough the aperture that exists on the ground plane of microstrip feed line. The dual-band achieved by variation of air gap [2 mm to 6 mm] between single patch antenna and aper-ture coupled microstrip antenna. The main advantage of this type antenna is increased the bandwidth of the antenna as compared to a single layered patch antenna. The two resonant frequencies can vary over a wide frequency range and the input impedance is easily matched for both frequencies. The obtain ratios of resonance frequencies are variable from 2.1 GHz to 1.1 GHz with increasing the air gap between single patch and aperture coupled microstrip antenna. The measured return loss [–14 dB] exhibits an impedance bandwidth of 35%. The input impedance and VSWR return loss have been measured with the help of Network analyzer.展开更多
A proposed circular patch antenna with notch-cut fed by a simple microstrip line is described in this paper. It is designed for ultra-wideband （UWB） wireless communications and applications over the band 3.1-10.6 GH...A proposed circular patch antenna with notch-cut fed by a simple microstrip line is described in this paper. It is designed for ultra-wideband （UWB） wireless communications and applications over the band 3.1-10.6 GHz. This antenna consists of a circular patch with notch-cut fed by a microstrip line, one transition step, and a partial ground plane. The 2： l voltage standing wave ratio （VSWR） bandwidth （Sll 〈-10dB） of the proposed antenna covers the entire UWB application range specified by Federal Communications Commission （FCC） that is from 3.1 to 10.6GHz. The proposed antenna is able to achieve an impedance bandwidth about 8.6 GHz （2.4-11 GHz）. The return loss, VSWR, radiation pattern, radiation efficiency, gain, distribution of the proposed group delay, and current antenna are included in this paper. The simulation results and proposed antenna design details are presented by CST Microwave Studio.展开更多
文摘This paper presents air gap aperture coupled microstrip antenna for dual-band operation over the frequency range of (2.9 to 6.0 GHz). This antenna differs from any other microstrip antenna with their feeding structure of the radiating patch element. Input signal couples to the radiating patch trough the aperture that exists on the ground plane of microstrip feed line. The dual-band achieved by variation of air gap [2 mm to 6 mm] between single patch antenna and aper-ture coupled microstrip antenna. The main advantage of this type antenna is increased the bandwidth of the antenna as compared to a single layered patch antenna. The two resonant frequencies can vary over a wide frequency range and the input impedance is easily matched for both frequencies. The obtain ratios of resonance frequencies are variable from 2.1 GHz to 1.1 GHz with increasing the air gap between single patch and aperture coupled microstrip antenna. The measured return loss [–14 dB] exhibits an impedance bandwidth of 35%. The input impedance and VSWR return loss have been measured with the help of Network analyzer.
文摘A proposed circular patch antenna with notch-cut fed by a simple microstrip line is described in this paper. It is designed for ultra-wideband （UWB） wireless communications and applications over the band 3.1-10.6 GHz. This antenna consists of a circular patch with notch-cut fed by a microstrip line, one transition step, and a partial ground plane. The 2： l voltage standing wave ratio （VSWR） bandwidth （Sll 〈-10dB） of the proposed antenna covers the entire UWB application range specified by Federal Communications Commission （FCC） that is from 3.1 to 10.6GHz. The proposed antenna is able to achieve an impedance bandwidth about 8.6 GHz （2.4-11 GHz）. The return loss, VSWR, radiation pattern, radiation efficiency, gain, distribution of the proposed group delay, and current antenna are included in this paper. The simulation results and proposed antenna design details are presented by CST Microwave Studio.
