Conventional reflector based Impulse Radiating Antennas (IRA’s) are designed with conical taper transmission line feed. A novel feed design approach is used to enhance gain of the IRA without increasing diameter of the reflector. This paper discus conventional and new IRA designs of different input impedances. IRA with conventional feed and with new dipole feed is designed for both 200 Ω and 10...

Aortic input impedance represents the hydraulic load presented by the systemic circulation to the left ventricle of the heart and is increased in patients with cardiovascular disease. Aging is a strong independent risk factor for cardiovascular disease and could exert this effect partly through an increase in modulus of aortic input impedance. We used a novel noninvasive technique to determine ...

A novel design of Dual band triangular serrated micro strip patch antenna was designed with different models of serrations and their simulation results are presented in this paper. Equal spaced serrated triangular shapes are etched on four sides of the patch and its performance characteristics are simulated. The number of elements on each side of the antenna is taken as 5,6,7,8 and all the mode...