Planar Dual-mode Dipole Antenna Formed by Artificial Microstrip Arms Loaded with Multiple Hslots for Broadband Operation of Vertically Polarized Radiation on UAV Platform
Journal
IEEE Transactions on Antennas and Propagation
Pages
1月1日
Date Issued
2022
Author(s)
Abstract
An antenna design is presented for long-distance transmission in the unmanned aerial vehicle (UAV) application. This antenna is in a dipole configuration but with dual-mode operations of both dipole and monopole mechanisms. The monopole behavior becomes apparent when installed on the UAV platform to provide a large ground. To ensure both modes’ good integration to produce a broad bandwidth, the dipole arms are formed by H-slot loaded microstrips to create a slower phase velocity. The separation between adjacent harmonic resonances can be decreased. This antenna has good vertically polarized radiation and maximum gains near the horizontal plane to provide better long-distance connections. Various combinations of Hshaped slots are applied to examine the bandwidth behaviors. The achieved size is 90 mm, roughly 1/3 wavelengths at 1.25 GHz and 1/4 at 0.8 GHz. The bandwidth is larger than 50%. Numerical HFSS full-wave simulation and measurement results are compared to validate the feasibility. IEEE
Subjects
Autonomous aerial vehicles; Bandwidth; Behavioral sciences; Broadband operation; Dipole antennas; dipole antennas; H-slot loading; Microstrip; Microstrip antennas; Resonant frequency; unmanned aerial vehicles; vertical polarization
SDGs
Other Subjects
Bandwidth; Behavioral research; Dipole antennas; Microstrip antennas; Microwave antennas; Monopole antennas; Slot antennas; Vehicle transmissions; Antenna design; Behavioral science; Broadband operation; Dual modes; H-slot loading; Long distance transmission; Micro-strips; Polarized radiation; Vehicle platforms; Vertical polarization; Natural frequencies
Type
journal article