Miniaturization of UHF antenna using a capacitive hat and parasitic ring
Conference
Ali, M, Venkatakrishnan, SB, Johnson, A et al. (2019). Miniaturization of UHF antenna using a capacitive hat and parasitic ring
. 10.1109/InCAP47789.2019.9134540
Ali, M, Venkatakrishnan, SB, Johnson, A et al. (2019). Miniaturization of UHF antenna using a capacitive hat and parasitic ring
. 10.1109/InCAP47789.2019.9134540
This paper presents a design approach to achieve the operational frequency ranging from 40MHz to 160 MHz with VSWR ≤ 3 and 5 dBi realized gain in prefixed antenna size of 30 cm width and 100 cm height. A body of revaluation (BoR) monopole antenna was optimized with respect to lowest frequency (flow) for the specified parameters resulting in lowest achievable frequency of flow = 50.21 MHz. To improve flow, capacitive hat and parasitic ring are used without changing surface profile of the BoR monopole, resulting in flow = 40 MHz.
