Design and Fabrication of Multiband Planar Antenna for 5G and Next-Generation Mobile Handset Applications

Microstrip patch antennas, also known as planar antennas, have been widely used for several decades. To boost the efficacy of wireless technology, multi-resonance antennas must be used. Patch antennas suffer from a relatively narrow bandwidth. The proposed technology makes use of a small strip-patch antenna with a wide range of resonant frequencies. The proposed device can detect and capture signals at frequencies ranging from 1.6 to 3.2 gigahertz. This research study describes a small multi-broadband planar antenna that is suited for WLAN/WiMAX and LTF/GS M/UMTS mobile device integration. GSM850/900, WLAN/WiMAX, DCSIPCSIUMTS, and LTE2300/2500 frequency bands are covered by the aforementioned antenna. A monopole is present on an individual surface of the thin dielectric substrate, manifesting in a configuration that resembles the alphabets C and U. On the other side, there is a F-shaped stretch that is devoid of lumped parts. The antenna measures 15 mm long, 68 mm wide, and 0.8 mm thick, making it ideal for insertion into ultra-thin mobile devices. HFSS was used to simulate multiple parameters during antenna building, including radiation pattern, S-parameter, efficiency, peak gain, and return loss. The recommended antenna was built and tested using a vector network analyzer. The proposed antenna has the lowest return loss across all resonance frequencies, uses fewer phone antennae, and takes up less space.