Analysis of Coaxial Fed U-Shaped Slot Multiband Antenna

In this Paper, the designing and result analysis of single band and multiband microstrip antenna have been studied. A multiband microstrip patch antenna with DMPS (Defected Microstrip Patch Structure) in which using three rectangular slots making U-Shape slot in patch forming a simple and efficient technique of design has been introduced for the betterment of more bands, VSWR, Radiation Pattern and impedance matching, also, giving the good performance at the desired resonant frequency. A U-slot loaded microstrip line fed antenna providing multiband of 5 bands (at five frequencies 3.8 GHz, 7.3 GHz, 9.5 GHz, 10.75 GHz, 14 GHz) for many microwave bands application is designed in HFSS 13.0. Loading slots at the non-resonating sides of the patch of single band antenna make its multiband for S-Band Applications (2-4 GHz), C-Band Applications (4-8 GHz), X-Band Applications (8-12 GHz), Ku-Band Applications (12-18 GHz).