Design and Measurement of Self-Matched Dual-Frequency Coplanar Waveguide-Fed-Slot Antennas

Omar, A.A.; Scardelletti, Maximilian C.; Hejazi, Z.M.; Dib, Nihad

doi:10.1109/tap.2006.888475

Cited by 29 publications

(18 citation statements)

References 6 publications

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“…Fig. 5, shows that the H co-plane is oval in shape while the E co-plane is bidirectional, the typical pattern of a non-grounded FSA [5]. The gain and the 3 dB BW are approximately 4.8 dBi and 60 , respectively.…”

Section: Resultsmentioning

confidence: 94%

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Temperature Dependency (25 <spl deg>C - 400 <spl deg>C) of a Planar Folded Slot Antenna on Alumina Substrate

Scardelletti

Jordan

Ponchak

2008

Antennas Wirel. Propag. Lett.

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The dependency of planar folded slot antenna characteristics fabricated on alumina substrates over the temperature range of 25 to 400 C are presented. The 3.575 GHz antenna is fed by a 20 mm long, 50 CPW line (S = 130 and W = 60 m),and there is no ground plane on the back side of the substrate. An on-wafer TRL calibration was used to deembed the CPW feed line for return loss measurements and to measure the increase in the effective dielectric constant and attenuation of the CPW lines as a function of temperature. The measured antenna characteristics show that the resonant frequency varies by less than 1%, the minimum return loss increases from 11 to 16 dB, the quality factor increases from 25.5 to 44.75, and the gain decreases by 1 dBi as temperature is increased from 25 C to 400 C. Finally, the effect of the measurement test setup on the measured radiation patterns is discussed.Index Terms-Absolute gain, alumina, folded slot antenna, high temperature, return loss.

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Section: Resultsmentioning

confidence: 94%

“…1, was designed to operate at 5 GHz and utilizes an internal self-matching technique, the antenna slot widths are designed to match the antenna to the feed line without external matching networks [5]. The antenna slot dimensions are: and mm.…”

Section: A Antenna Design and Fabricationmentioning

confidence: 99%

Temperature Dependency (25 <spl deg>C - 400 <spl deg>C) of a Planar Folded Slot Antenna on Alumina Substrate

Scardelletti

Jordan

Ponchak

2008

Antennas Wirel. Propag. Lett.

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“…The list of these criteria is presented in Table 4 that includes the dominant four main aspects indicated. These factors (criteria) and their subcriteria were introduced in the AHP model for this study after wide literature review [1][2][3][4][5] and [9][10][11]. Then, data collection aimed at evaluating the comparability of the selected criteria was achieved by means of a questionnaire that was sent out to some twenty carefully selected experts in antenna worldwide, most of whom are from academic institutions and a few professionals.…”

Section: The Ahp Model For This Studymentioning

confidence: 99%

“…In mobile phones, there are several commonly used types of antennas (alternatives) that all share several distinguishing features such as; small weight, small size and ability to be fit inside the mobile phone housing, high gain of up to 8 dBi, and very good impedance matching over the operating band. The antennas that possess the above features, and are therefore commonly used inside mobile phones operating in the GSM band, include the monopole antenna [4], the planar inverted F-antenna (PIFA) [5], the microstrip patch antenna [6], the loop chip antenna [7], and the printed slot antenna [8][9][10].…”

Section: Introductionmentioning

confidence: 99%

A Decision-Making Model for Selecting the GSM Mobile Phone Antenna in the Design Phase to Increase Over All Performance

AL-Oqla¹,

Omar²

2012

PIER C

Self Cite

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Abstract-The wireless link between a mobile phone and its surrounding crucially depends on the quality and properties of the mobile phone antenna.The process of antenna selection is a multi-criteria decision-making problem with conflicting and diverse objectives. In this work, a model was built to select the best GSM mobile phone antenna in the design phase to increase the overall performance in the band. The model includes building an analytic hierarchy structure with a tree of hierarchical criteria and alternatives to ease the decision-making. The antenna options considered were limited to retractable whip antenna, loop chip antenna, monopole antenna, planar inverted F-antenna (PIFA), microstrip patch antenna, and printed slot antenna. An Analytical Hierarchy Process (AHP) was used to assist in building the model and help draw decisions. As a result of the decision making process, the monopole antenna was found to be the best choice for the GSM mobile phone antenna. Expert Choice TM software was used to conduct the experimental assessments. The judgments were found to be consistent, precise and justifiable with narrow marginal inconsistency values. The paper also presents a thorough sensitivity analysis to demonstrate the confidence in the drawn conclusions.

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“…The coplanar waveguide (CPW)-fed slot antenna has become a promising candidate due to its uniplanar structure, wide bandwidth, and easy integration with RF front-end circuitry. To our knowledge, however, only a few slot antenna elements using CPW as feed lines have been proposed to possess dual-or multi-frequency capabilities [1]- [8]. Slot rings and slot loops are the fundamental structures commonly used in [3]- [6], but they inherently produce high cross-polarized radiations.…”

Section: Introductionmentioning

confidence: 99%

CPW-Fed Aperture-Coupled Slot Dipole Antenna for Tri-Band Operation

Chen

Hsu

2008

Antennas Wirel. Propag. Lett.

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A uniplanar aperture-coupled slot dipole antenna capable of tri-band operation is presented. Design considerations for the three operating frequencies are extensively discussed. The lower and middle operating frequencies can be obtained by varying the lengths of the lower and middle pairs of the protruded slots, respectively, while the upper frequency can be determined by adjusting the lengths of the upper protruded slot pair and the coupling aperture pair. Within each band, slot-dipole-like radiation patterns, low cross-polarized radiations, and moderate antenna gains can be observed.

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Design and Measurement of Self-Matched Dual-Frequency Coplanar Waveguide-Fed-Slot Antennas

Cited by 29 publications

References 6 publications

Temperature Dependency (25 <spl deg>C - 400 <spl deg>C) of a Planar Folded Slot Antenna on Alumina Substrate

Temperature Dependency (25 <spl deg>C - 400 <spl deg>C) of a Planar Folded Slot Antenna on Alumina Substrate

A Decision-Making Model for Selecting the GSM Mobile Phone Antenna in the Design Phase to Increase Over All Performance

CPW-Fed Aperture-Coupled Slot Dipole Antenna for Tri-Band Operation

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