Coplanar Waveguide Fed Hexagonal Shaped Slot Antenna for Breast Tumor Detection

Breast cancer diagnosis is the second most mortal diseases for women in the worldwide. Recently microwave imaging has been the diagnostic techniques applied for the detection of breast cancer, heart stroke detection, brain cancer detection. A microwave imaging system requires an antenna which operates in an ultra wide band frequency range of 3.1 – 10.6 GHz and resonates at single and multiple frequencies. A novel coplanar waveguide fed micro-strip patch antenna is designed for the breast tumor detection based microwave imaging system which is the major objective presented in this paper. The design consists of coplanar waveguide fed hexagon shaped slotted patch antenna with dimension of 25x25x1mm3 and FR4 substrate of dielectric constant 4.4. Parametric analysis is performed and it provides a wide band of 2.3 GHz – 10.7 GHz and a fractional bandwidth of 129%. The design is very suitable for breast tumor detection. It provides a reflection loss of -49.8dB at 7GHz and VSWR <2 over 2.3 GHz – 10.7GHz

THE DEVELOPMENT OF ANTENNA FOR INDOOR WIRELESS LOCAL AREA NETWORK APPLICATION

In wireless technology, one of the recently technologies used to have a good performance of antenna is Dielectric Resonator Antenna (DRA). The dielectric resonator antenna (DRA) consists of superior performance features such as it can be fabricated using a high dielectric constant material, covers wide range of frequency band: f = 0.7-35 GHz, exhibits high radiation efficiency (95%), excitable through different transmission lines and it can be fabricated in different shapes such as rectangular, cylindrical and hemispherical. The small size of the DRA makes it suitable element for antenna arrays. One of the DRA shapes that have been considered is cylindrical shape. The two elements of CDRA array design which feeding by rectangular aperture coupled slots is computed and analysed by using CST Microwave studio and Agilent network analyser

THE DEVELOPMENT OF ANTENNA FOR INDOOR WIRELESS LOCAL AREA NETWORK APPLICATION

In wireless technology, one of the recently technologies used to have a good performance of antenna is Dielectric Resonator Antenna (DRA). The dielectric resonator antenna (DRA) consists of superior performance features such as it can be fabricated using a high dielectric constant material, covers wide range of frequency band: f = 0.7-35 GHz, exhibits high radiation efficiency (95%), excitable through different transmission lines and it can be fabricated in different shapes such as rectangular, cylindrical and hemispherical. The small size of the DRA makes it suitable element for antenna arrays. One of the DRA shapes that have been considered is cylindrical shape. The two elements of CDRA array design which feeding by rectangular aperture coupled slots is computed and analysed by using CST Microwave studio and Agilent network analyser