Pulse Preserving Capabilities of Printed Circular Disk Monopole Antennas With Different Grounds for the Specified Input Signal Forms

Wu, Qi; Jin, Ronghong; Geng, Junping; Ding, Min

doi:10.1109/tap.2007.905854

Cited by 45 publications

(34 citation statements)

References 14 publications

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“…In the last step of this work, fidelity factor is calculated by using CST Microwave Studio. By utilizing the approach presented in [28], the input pulse is delivered to the antenna, and the E θ component of electric field in the far-field region is received via seven virtual probes. The distance between the transmitting antenna and the probes maintains at 40 cm.…”

Section: Numerical and Experimental Resultsmentioning

confidence: 99%

A Compact Uwb Antenna Design Using Rounded Inverted L-Shaped Slots and Beveled Asymmetrical Patch

Dastranj¹,

Bahmanzadeh²

2018

PIER C

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Abstract-A compact ultra-wideband (UWB) antenna with simple structure is presented. To achieve UWB performance with a compact size, two open ended rounded inverted L-shaped slots are etched on the square ground plane. Moreover, further bandwidth enhancement is obtained by cutting a bevel on the asymmetrical radiating patch. The antenna is fed by a 50 Ω microstrip line and has a small size of 28 × 28 × 1.6 mm 3 . The simulation time-and frequency-domain results obtained from HFSS simulator package are verified by experimental measurements. Both simulated and measured results show that the antenna can provide a wide impedance bandwidth of more than 129% from 2.7 to 12.55 GHz with −10-dB reflection coefficient. Besides, it is shown that by introducing several antenna designs, the impedance bandwidth can be enhanced from 58% to 129%. The effects of the key design parameters on the antenna impedance bandwidth are also investigated and discussed. Measured results for the reflection coefficient, far-field radiation patterns, radiation efficiency, gain, and group delay of the designed antenna over the UWB spectrum are presented and discussed. Measured data show good concordance with the numerical results. Also, the fidelity factor is calculated in both E-and H-plane by using CST Microwave Studio. The obtained results in both time-and frequency-domain indicate that the antenna is a good option for UWB applications.

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Section: Numerical and Experimental Resultsmentioning

confidence: 99%

A Compact Uwb Antenna Design Using Rounded Inverted L-Shaped Slots and Beveled Asymmetrical Patch

Dastranj¹,

Bahmanzadeh²

2018

PIER C

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“…The input pulse is a fifth derivative of a Gaussian pulse which has spectral components in the frequency range 3-11 GHz. Such a pulse is chosen to excite the antenna so as to comply with the Federal Communication Commission (FCC) defined emission mask standards [17]. The input pulse and the impulse response of the antenna are shown in the same graph so as to compare the input and transmitted pulse shapes.…”

Section: Resultsmentioning

confidence: 99%

Design of a Novel Antenna and Its Characterization in Frequency and Time Domains for Ultra Wide Band Applications.

Ershadh¹,

Krishna²,

Bhayaveni³

et al. 2014

PIER C

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Abstract-A novel compact planar monopole antenna for UWB applications is proposed in this paper. The proposed novelty of the antenna is attributed to the addition of suitable beveled stubs to a basic circular geometry of the radiator as an improved impedance matching technique to achieve enhanced radiation performances. The feed circuit is a tapered microstrip line with a matching section over a semi-elliptical ground plane. The proposed antenna achieves sufficient impedance bandwidth for a VSWR < 2 for frequencies from 3-15 GHz covering the entire UWB range (3.1-10.6 GHz), which is verified experimentally. Also this design achieves good gain, constant group delay and a near omnidirectional radiation pattern over the UWB band. The UWB characteristics of the antenna are evaluated in frequency and time domains. Results reveal that the proposed antenna has flat transfer function, linear phase and good impulse response with virtually no ringing which are the essential requirements for an UWB antenna for efficient pulse transmission/reception. The simulated and measured results of these parameters are presented. The performance results of the novel antenna with other designs is also compared and presented.

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“…and are independent from each other, allowing a free combination of the three functions to obtain the desired . Our method has then one degree of freedom more than the Fidelity Factor method in [4], where only the two antennas are independent. With our method, the channel can be modified as well and substituted with other non free-space channels.…”

Section: Discussionmentioning

confidence: 99%

“…The size and position of the ground plane varies for the three antennas, as is indicated on the figure. From the structure of a circular monopole it can be assumed that the best radiation will be in the direction normal to the antenna surface . Nevertheless, this is not true for most planar circular monopoles, as found in [4], [6], [14].…”

Section: Studied Antennasmentioning

confidence: 94%

“…Not all simulation tools can directly obtain the time domain E-field, and special measurement equipment is required, which in most cases has limited dynamics. A time domain software was used in [4] to calculate the Fidelity Factor. The authors showed that the measured correlation factors of a two-identical antenna system is approximated with the square of the Fidelity Factor.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

System Fidelity Factor: A New Method for Comparing UWB Antennas

Quintero

Zürcher

Skrivervik

2011

IEEE Trans. Antennas Propagat.

195

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The main purpose of the System Fidelity Factor (SFF) is to incorporate frequency and time domain characteristics of an antenna system into a comparison method for ultrawideband (UWB) antennas. The SFF is an interesting tool because both simulations and measurements can be done in a simple and straight-forward manner. Simulations of a single antenna are combined into a two-antennas system analysis by means of a simple post-processing, where the transfer function of the transmitting and receiving antennas are calculated. Measurements of the SFF are done using a two port Vector Network Analyzer (VNA). The polar representation of the SFF allows an equitable comparison between antennas. The procedure to derive the SFF is described in detail in the paper. Two examples are given where the UWB performance of three antenna systems are compared. In the first example antenna systems of two identical monopoles are studied. In the second example the transmitting antenna is a Vivaldi and the receiving antenna a monopole.Index Terms-Fidelity factor, planar circular monopole, ultrawideband (UWB) antenna.

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Pulse Preserving Capabilities of Printed Circular Disk Monopole Antennas With Different Grounds for the Specified Input Signal Forms

Cited by 45 publications

References 14 publications

A Compact Uwb Antenna Design Using Rounded Inverted L-Shaped Slots and Beveled Asymmetrical Patch

A Compact Uwb Antenna Design Using Rounded Inverted L-Shaped Slots and Beveled Asymmetrical Patch

Design of a Novel Antenna and Its Characterization in Frequency and Time Domains for Ultra Wide Band Applications.

System Fidelity Factor: A New Method for Comparing UWB Antennas

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