Fidelity Pattern Analysis of a CPW-Fed Miniature UWB Antenna Using Different Excitation Pulses

Sharma, Manmohan; Alomainy, Akram; Parini, C.G.

doi:10.1109/lawp.2014.2368834

Cited by 17 publications

(10 citation statements)

References 13 publications

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“…The effect of PSD with varying pulse width is already explored in Reference . Here from Figure , it can be concluded that pulse width of 150 ps (for both pulse type) has more coverage within the frequency of operation and at the same time PSD performance also follows the FCC defined emission mask limit very well . The radiated electric field from the designed antenna in broadside direction has also been verified by placing a probe at far‐field distance.…”

Section: Time‐domain Analysismentioning

confidence: 77%

“…Here from Figure 15, it can be concluded that pulse width of 150 ps (for both pulse type) has more coverage within the frequency of operation and at the same time PSD performance also follows the FCC defined emission mask limit very well. 37 The radiated electric field from the designed antenna in broadside direction has also been verified by placing a probe at farfield distance. Figure 16 depicts that the antenna has sharp spectral peaks and more oscillation for the input pulse.…”

Section: Time-domain Analysismentioning

confidence: 92%

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Performance analysis of a hybrid dielectric resonator antenna in frequency and time domains

Bhattacharya

Dasgupta

Jyoti

2019

Int J RF Microw Comput Aided Eng

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This article presents a compact hybrid X‐band radiator, by combining the multiple resonances of two resonating and radiating structures, namely (a) a cylindrical dielectric resonator (CDR) and (b) a new type of slot geometry along with a U‐shaped microstrip feedline. Excitation of a few higher order modes in CDR structure is also observed and further investigated. The detailed performance analysis of the proposed geometry has been carried out both in frequency and time domains. Some design guidelines have been formulated which enable the design of the antenna for different bands. The proposed structure offers 46.3% (S11 ≤ −10 dB and Voltage Standing Wave Ratio (VSWR) < 2) (measured) impedance bandwidth and about 4.5 dBi peak gain. The proposed antenna has the potential to be an ideal candidate for X‐band sensor applications.

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Section: Time‐domain Analysismentioning

confidence: 77%

Section: Time-domain Analysismentioning

confidence: 92%

Performance analysis of a hybrid dielectric resonator antenna in frequency and time domains

Bhattacharya

Dasgupta

Jyoti

2019

Int J RF Microw Comput Aided Eng

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“…where c is the free-space velocity and R the distance between the two antennas [17]. Fairly flat magnitude variation less than 10 dB is observed in desired frequency band for each port.…”

Section: Resultsmentioning

confidence: 99%

“…It is determined by the absolute maximum of the cross-correlation between transmitted and received time pulses. The Fidelity Factor is defined as [17] …”

Section: Resultsmentioning

confidence: 99%

Compact Wlan Band-Notched Printed Ultrawideband Mimo Antenna With Polarization Diversity

Femina¹,

Mishra²

2016

PIER C

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Abstract-A novel uniplanar compact WLAN band-notched printed ultra wideband (UWB) multiple-input multiple-output (MIMO) antenna with dual polarization for high data-rate wireless communication is proposed. The antenna consists of two CPW-fed floral radiating elements along with a decoupling structure to ensure high isolation. The band notch at the WLAN frequency band is achieved by etching one single U-shaped slot on each antenna element. Results show that the proposed antenna gives impedance bandwidth from 2.7 GHz to 10.9 GHz with notched frequency band from 5.1 GHz to 5.9 GHz. The proposed antenna provides nearly omnidirectional radiation pattern, low envelope correction coefficient [ECC], moderate gain, efficiency, fidelity factor and pattern stability factor [PSF]. Furthermore, diversity characteristics such as mean effective gain [MEG] and diversity gain [DG] are also studied. Moreover, the time-domain analysis displays minimum dispersion to the radiated pulse. All these features make the proposed antenna a good candidate for future high data-rate wireless communication systems with polarization-diversity operation, where the challenge of multipath fading is a major concern.

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“…Furthermore, pulse-preserving capabilities of the UWB DRA are investigated for three analytical input pulses: linearly chirped Gaussian, fifth-order Gaussian, and third-order Rayleigh. This type of analysis has been used to compare pulse performance of the same antenna for different input pulses [23,24]. The effective isotropically radiated power (EIRP) spectra for each of these pulses are computed and compared with the emission limits of the FCC UWB mask.…”

Section: Introductionmentioning

confidence: 99%

Pulse‐preserving characteristics and effective isotropically radiated power spectra of a new ultrawideband dielectric resonator antenna

Iqbal

2018

IET Microwaves, Antennas & Propagation

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A dielectric resonator antenna (DRA) with a full ground plane and an ultrawideband (UWB) operating bandwidth of 3.1–11.6 GHz is presented. Good return loss over a wide bandwidth is achieved, while the full ground plane directs most of the radiation into the upper hemisphere, significantly reducing undesirable radiation to the lower hemisphere. The measured results confirm a 10‐dB return‐loss bandwidth of 115%. Time‐domain characteristics and effective isotropically radiated power (EIRP) spectra of the antenna are investigated for several types of UWB input pulses. The correlations between the input pulses and the radiated pulses in many directions were found to be excellent when the antenna is excited by a linearly chirped Gaussian pulse or a fifth‐order Gaussian pulse. Nevertheless, EIRP spectrum calculations indicate that none of those pulses efficiently fill the Federal Communication Commission UWB mask when applied to this DRA. Hence, a third‐order Rayleigh pulse is introduced and tuned to make efficient use of the allowed spectrum limits. Further improvement of pulse performance is investigated by varying antenna design parameters. This DRA is suitable for both impulse radio UWB systems and carrier‐based UWB systems.

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Fidelity Pattern Analysis of a CPW-Fed Miniature UWB Antenna Using Different Excitation Pulses

Cited by 17 publications

References 13 publications

Performance analysis of a hybrid dielectric resonator antenna in frequency and time domains

Performance analysis of a hybrid dielectric resonator antenna in frequency and time domains

Compact Wlan Band-Notched Printed Ultrawideband Mimo Antenna With Polarization Diversity

Pulse‐preserving characteristics and effective isotropically radiated power spectra of a new ultrawideband dielectric resonator antenna

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