D-Fiber antenna characterization using finite-element analysis

An all-fiber antenna using piezoelectric polymer coated circular core D-fib er has been characterized using finite-element analysis. The response of th e D-fiber antenna was determined over a wide frequency range from 1 MHz to 2 GHz. The modeling predicts an electric field induced phase shift of 4 pm 2.43 X 10(-5) rad/(V/m) per meter at 5 MHz. At frequencies higher than 8 MH z, the optical response is dominated by radial resonances of the D-fiber/co ating composite. Using the simulation results, a minimum detectable electri c field of 41 muV/m has been achieved using a 1 km length of coated D-fiber . In addition, a D-fiber antenna network intended for microcellular communi cations has been analyzed using shot noise limited detection. The D-fiber a ntenna has potential applications in areas such as electromagnetic compatib ility testing and radio-over-fiber networks where it provides a convenient means of optically generating radio signals.