Band Pass Filter coupled junction coupled stepped impedance resonators diplexer insertion loss isolation Ansoft HFSS Bow-tie antenna CPW Feed CST microwave studio CST-MW CW THz photonic transmitters DC probe Defected Ground Structure (DGS) Defected ground structure FCC Fractal Geometry Fractal antenna GCPW GPS band GaAs substrate ISM ISM band Low pass-filter Miniaturisation Miniaturized Modified Ground Structure Multibande Antenna Planar Antenna Rectangular microstrip patch antenna Shaped Slot UHF RFID UWB Ultra wideband WiMAX band conversion efficiency rectifier schottky diode wireless power transmission