Ultra-Wideband Trident Inset-Fed Monopole Antenna With a 3-D Conical Ground

An Ultra-Wideband MIMO Bowl-Shaped Monopole Antenna with Sturdy and Simple Construction

“…Since this material has the characteristics of fre prevention, the antenna interior is more practical for vehicle applications. Compared with other works [9][10][11][12], whose structure is solid or requires several components, the proposed antenna, as a single component, is easy to fabricate by CNC, and the weight is light due to the hollow structure made of aluminum. Tus, the proposed antenna is more suitable for the use of vehicle antennas.…”

“…With their wideband and omni-directional radiation properties, monopole antennas have been widely used to achieve UWB-MIMO antennas [7][8][9][10][11][12][13]. In [7], a top-hat monopole antenna was conceived to achieve a conical radiation pattern, but it had a narrow bandwidth.…”

“…In [13], novel wideband roll-monopole antennas were devised, but the structures were not sturdy. Among the monopole antennas [7][8][9][10][11][12][13], the structures are either complicated or heavyweight. To achieve UWB-MIMO antennas, decoupling structures, such as ground stubs, defected ground slots, and refectors, are mostly used to improve the isolation [14][15][16][17][18], which also complicates the design.…”

VHF/UHF Wideband Slim Monopole Antenna with Distributed Matching Structures

“…is antenna achieves a bandwidth of 4.861 : 1 but with a diameter of 0.115λ max . Dzagbletey et al present a planar monopole with a cone ground that exhibits a relatively wide bandwidth of 0.56 to 8.2 GHz [10]. With the tridentbranches feed, the monopole antenna is well matched in the low-frequency region but with a diameter of 0.187λ max .…”