Coplanar-waveguide-fed slot-coupled rectangular dielectric resonator antenna

Salameh, M. S. Al; Antar, Yahia M. M.; Séguin, Guy

doi:10.1109/tap.2002.802097

Cited by 126 publications

(54 citation statements)

References 11 publications

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“…Bandwidths of up to 10% can be easily achieved with simple rectangular DRA; that cannot fulfill the requirement of broadband/wireless applications. So, various approach has been investigated to enhance the bandwidth of DRA as stacking multiple DRAs, using parasitic dielectric resonator elements, introducing the air gap, slot coupling, thick substrate etc [11][12][13][14][15][16][17][18]. Many bandwidth enhancement techniques investigated earlier increases the overall size and volume of the DRA antenna which can limits its use in portable device.…”

Section: Introductionmentioning

confidence: 99%

Patch Loaded DRA for Broadband WLAN Applications

Sharma¹,

Khare²,

Srivastava³

et al. 2013

IJCA

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A wideband patch loaded dielectric resonator antenna (DRA) is discussed here. The rectangular ring shaped slot coupling is used to excite the proposed antenna. In this paper, rectangular ring shaped slot coupled DRA and patch loaded DRA is studied and compared. The combined effect of patch radiator with rectangular ring shaped slot coupled DRA, on the return loss is observed. Simulation is done using Ansoft HFSS which is based on finite element method. Simple DRA resonates at two frequencies centered at 2.25 GHz having return loss of -14.41 db and 4.61GHz with a return loss of -19.29db; The patch loaded DRA shows resonance at frequencies centered around 2.19GHz having return loss of -32.3db and 4.4GHz with a return loss of -29.18db.The patch loaded DRA is based on the multi resonance technique that combines the resonance of slot coupled dielectric resonator and micro strip patch antenna. The bandwidth achieved for simple DRA is 26.8 % while patch loaded DRA offers 44.1 %.As the patch loaded DRA has larger bandwidth, may be used for wideband WLAN applications like WiFi, Bluetooth, Wimax etc. General TermsBroadband, WLAN,antenna

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Section: Introductionmentioning

confidence: 99%

Patch Loaded DRA for Broadband WLAN Applications

Sharma¹,

Khare²,

Srivastava³

et al. 2013

IJCA

View full text Add to dashboard Cite

show abstract

“…As the present and future communication systems have imposed strict requirements on the bandwidth of antennas, a lot of bandwidth enhancement techniques are used in designing the dielectric resonator antenna (DRA), mainly at lowering the inherent Q-factor of the resonator; using external matching networks; and combining multiple resonators. A much wider bandwidth was achieved by stacking two different DRAs [5,6], loading a high permittivity, low-profile dielectric disc on top of a conventional homogeneous DRA in and plugging an inner core into the lower stacked part [7]. In addition, multi-segment DRAs are developed to enhance its coupling to a microstrip line by inserting one or more thin segments of different permittivity substrates under a DRA of low permittivity [8].…”

Section: Introductionmentioning

confidence: 99%

A Dielectric Resonator Antenna Array for Wideband Applications

Erande¹

2012

IOSRJECE

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“…CPW-Fed Slot Antenna with Triangular Tuning Stub [6], the slot shape could be bow-tie slot [7], wide rectangular slot [8], circular slot [9] and hexagonal slot [10]. The impedance tuning can also be performed by using coupling techniques like inductively and capacitively coupled slots [11], dielectric resonator coupling [12] and other techniques such as using photonic band gap (PGB) [13]. Using these techniques, large impedance bandwidth could be obtained but they are quite complicated.…”

Section: Introductionmentioning

confidence: 99%