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A novel slot antenna designed on the road surface for machine-to-machine (M2M) RFID communication is presented. A corrugated ground plane with perturbed surface impedance is used underneath the antenna's radiator to adjust the antenna's radiation pattern, which otherwise will be highly affected by the properties of the road surface. The proposed antenna configuration is verified by full-wave simulations...
A software-defined pattern reconfigurable Ka-band antenna for high-speed satellite-on-the-move (SOTM) application is presented. The proposed antenna employs the concept of travelling-wave slotted integrated waveguide to achieve a high-directivity radiation beam as needed for satellite communications. The substrate integrated waveguide (SIW) is employed as the antenna's main structure to lower the...
This paper presents the design of a corrugated tapered slot antenna (TSA) with application to microwave imaging (MI) system for brain stroke detection. The antenna is excited by a stepped transmission line through slotline transition. Corrugations are used to reduce the size of the antenna and also improve its radiation performance. Simulated and measured results demonstrate that the proposed antenna...
The design of a compact directive antenna for use in microwave imaging systems for early breast cancer detection is presented. The proposed element uses a modified coplanar waveguide fed tapered slot antenna. To improve the directivity and fix the direction of the mainbeam, the proposed antenna uses curved slots located near the open end of the tapered aperture and a semi-rectangular slot at the back...
This paper presents the design of compact Tapered Slot Antennas (TSAs) for application in an Ultra Wide Band (UWB) microwave imaging system. In the initial step, a conventional size-reduced TSA with an exponential taper for 3.1–10.6 GHz band is designed. From the radiation pattern analysis, it is found that this antenna exhibits poor directivity in the lower part of UWB. To overcome this shortfall,...
This paper presents the design of a size-reduced Tapered Slot Antenna (TSA) for operation in the ultra wide frequency band (UWB) of 3.1-10.6 GHz. In the initial study, the design of a conventional TSA with an exponential taper is accomplished. The obtained radiation patterns show that this antenna suffers from poor directivity in the lower part of UWB. To overcome this shortfall corrugations are added...
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