Accurate characterization of planar printed antennas using finite-difference time-domain method

Wu, Chen; Wu, Ke-Li; Bi, Zhiqiang

doi:10.1109/8.142627

Cited by 70 publications

(17 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The absorbing boundary helps dissipate energy reflected back to the source. A more complicated model is proposed in [25], where the curved boundary of the inner and outer conductors of a coaxial line is approximated by staircasing, and the tangential electric field components are forced to be zero at the conductor surface. This model takes into account of the contributions from the higher order modes at the junction between the probe and the antenna.…”

Section: Probe Feed Modelmentioning

confidence: 99%

FDTD Analysis of a Sized-Reduced, Dual-Frequency Patch Antenna

Gao¹,

Li²

1999

PIER

View full text Add to dashboard Cite

Section: Probe Feed Modelmentioning

confidence: 99%

FDTD Analysis of a Sized-Reduced, Dual-Frequency Patch Antenna

Gao¹,

Li²

1999

PIER

View full text Add to dashboard Cite

“…2 are compared. They are (a) the method applying the voltage at the junction between the wire and the cavity bottom (called the gap voltage model) [1,2] and (b) the method connecting the coaxial line (called the coaxial model) [8,15]. In the figure, the junction between the cavity bottom and the monopole is shown exploded.…”

Section: Cavity-backed Slot Antennamentioning

confidence: 99%

“…This is further obvious in the case of 5000 steps. Hence, in the analysis combining the gap voltage model and the time window, the number of time steps needed to obtain analysis results that can estimate the experimental results is 2 15 or 20,000. In Ref.…”

Section: Input Characteristicsmentioning

confidence: 99%

Comparison of analysis methods for performance of cavity‐backed slot antennas using the FDTD technique

Hikage¹,

Omiya²,

Itoh³

2001

Electron. Comm. Jpn. Pt. I

View full text Add to dashboard Cite

SUMMARYBy applying the FDTD method to the evaluation of the characteristics of a cavity-backed slot antenna, a design considering the feed structure is possible. In this paper, a feed model suitable for the design and analysis of a cavity-backed slot antenna is presented. As feed models, a gap voltage model and a coaxial model are used and results of their analysis are compared. From the analysis of the input characteristics, it is revealed that characteristic evaluation is possible in the coaxial model with fewer time steps than the gap voltage model. In the evaluation of the radiation characteristics, the absolute gain evaluation method is presented with a sinusoidal excitation.

show abstract

“…Full-wave approaches [2][3][4][5] have been used to determine the various antenna parameters, but extensive numerical computations are also required to provide a fuller picture. A cavity model [6,7] and a transmission-line model [8] have been proposed as efficient analysis and design methods, but their accuracy and design simplicity have become debatable issues.…”

Section: Introductionmentioning

confidence: 99%

Optimum design of an aperture‐coupled microstrip patch antenna

Kim¹

2003

Micro & Optical Tech Letters

View full text Add to dashboard Cite

higher operating center frequency decreases from 2.71 GHz to 2.29 GHz, whereas the lower operating frequency remains nearly constant (ϳ1.9 GHz). This suggests that by varying the patch length, the frequency ratio of the two operating frequencies can be adjusted. It is also noted that the feed position d is fixed (17 mm) for the cases in Figure 3, and a better impedance match would be found by moving the feed point.A prototype of the proposed antenna with slot width S ϭ 1.2 mm was constructed for providing simulation validation. The measured and simulated results are presented in Figure 4, and a satisfactory agreement is obtained. From the measured results, the two frequency bands are centered at 1.9 and 2.4 GHz with 10-dB impedance bandwidths of 9% and 8.4%, respectively. Two principal radiation patterns of the prototype antenna with a group of parallel slots are also measured at the center frequencies of the two operating bands, as shown in Figures 5 and 6, respectively. The radiation patterns are similar to that of the conventional PIFA, and the peak gains are found to be about 1.7 dBi at 1.9 GHz and 4.3 dBi at 2.4 GHz. CONCLUSIONThis paper has described the simulated and experimental results of the PIFA with a group of parallel slots embedded in the ground plane. The proposed antenna can provide dual-frequency operation and the frequency ratio can be tuned by varying the patch length. An example of the proposed antenna has been successfully implemented and designed for PCS (1.9 GHz) and WLAN (2.4 GHz) applications. Experimental results have shown that the radiation patterns in the two frequency bands are similar to that of a conventional PIFA.

show abstract

Accurate characterization of planar printed antennas using finite-difference time-domain method

Cited by 70 publications

References 18 publications

FDTD Analysis of a Sized-Reduced, Dual-Frequency Patch Antenna

FDTD Analysis of a Sized-Reduced, Dual-Frequency Patch Antenna

Comparison of analysis methods for performance of cavity‐backed slot antennas using the FDTD technique

Optimum design of an aperture‐coupled microstrip patch antenna

Contact Info

Product

Resources

About