Abstract: The embodiments herein provide a miniaturized multifunction ultra-wideband antenna comprising an omnidirectional radiator and unidirectional radiator. The planar Square Monopole Antenna (SMA) with a maximum dimension of ?g/5 provides a 10:1 ultra-wide bandwidth with an omnidirectional radiation pattern. The coplanar waveguide technology is the technology incorporated along with Heptagonal Microstrip Patch Antenna (HMPA) placed above a Full Ground Plane (FGP) to achieve unidirectional radiation pattern. The Heptagonal Microstrip Patch Antenna (HMPA) backed with the Pi shaped Parasitic Patch (PSPP) is electromagnetically coupled to the Full Ground Plane (FGP) through the Shorting Pins (SP). Good isolation is achieved through the orthogonal arrangement segregated with the Square Slot (SS) and Inverted L shaped slot (ILSS).

Abstract: The embodiments herein provide a multiband reconfigurable filtenna comprising a monopole antenna coupled to a center split transmission line and a reconfigurable microstrip filter replacing a feed-in end of the center split transmission line to provide resonance to the monopole antenna at a plurality of frequency bands. The reconfigurable microstrip filter includes a C-shaped resonator (CSR), a meandered loop resonator (MLR), an Inverted Pulse Shaped Resonator (IPSR) and an Open Circuited Stub (OCS). Further, a plurality of switches is coupled to the reconfigurable microstrip filter to switch coupling of the monopole antenna between the CSR, the MLR, the IPSR and the OCS for operating the monopole antenna, at one of the plurality of frequency bands.