Ultra wideband monopole/dielectric resonator antenna

A Truncated Conical Dielectric Resonator Antenna for Body-Area Network Applications

“…In a similar manner, the bandwidth of probe-fed rectangular and cylindrical DRAs is increased by changing the radius-to-height and length-to-height ratios in [3]. Finally, the combination of the resonances of an annular DRA with that of a quarter-wave monopole results in a 3:1 bandwidth and monopole-like radiation patterns in [4]. In this configuration, the monopole is acting both as a loaded radiating element and a feeding structure for the dielectric resonator (DR).…”

“…They can generally be divided into two major categories. The first approach is the mode-merging technique, where multiple modes are excited and coupled at nearby frequencies [2]- [4]. In [2], a strip-fed rectangular DRA is investigated, exhibiting broadside LP radiation characteristics and a bandwidth of over 40%.…”

Investigation of a Cross-Slot-Coupled Dual-Band Circularly Polarized Hybrid Dielectric Resonator Antenna

“…With the development of wireless communication systems, DRAs with dual-band performance have been widely investigated [3][4][5]. Hybrid DRA [6][7][8][9][10][11][12] technology is a viable candidate for realizing dual-band operation. A direct approach to designing a hybrid DRA is to introduce an extra slot resonator [9].…”

“…In [10], a compact wideband DRA was obtained by merging the resonances of the slot coupled DRA and the DR loaded slot. In [11], an ultra-wideband hybrid antenna was proposed by combining the annular DRA with a monopole that simultaneously acts as a feed structure and a radiator. And a dual-band hybrid DRA fed by a coplanar waveguide has been reported in [12].…”

Dual-Mode Bridge-Shaped Dielectric Resonator Antennas

“…For example, an inversed trapezoidal DRA and an inversed pyramidal DRA were presented in [3] and [4], respectively, demonstrating a wide impedance bandwidth and well-behaved broadside radiation patterns. An annular DRA exhibiting a 3:1 impedance bandwidth and monopole-like radiation patterns was investigated in [5]. Furthermore, various multilayer DRAs in rectangular [6] and cylindrical [7] configurations have demonstrated that the combination of different materials can be exploited to enhance the bandwidth of DRA operation.…”