Analysis and design of broad-band single-layer rectangular u-slot microstrip patch antennas

Weigand, Steven M.; Huff, Gregory H.; Pan, K.H.; Bernhard, Jennifer T.

doi:10.1109/tap.2003.809836

Cited by 314 publications

(177 citation statements)

References 24 publications

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“…The proposed antennas are also suitable for sequential array design. By using sequential rotation technique, even wider AR bandwidth could be obtained [4][5][6].…”

Section: Resultsmentioning

confidence: 99%

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Design and Study of Wideband Single Feed Circularly Polarized Microstrip Antennas

Yang¹,

Lee²,

Kishk³

et al. 2008

PIER

195

122

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Abstract-The performance of single feed truncated corner circularly polarized microstrip antennas with different substrate thickness is studied by simulation and experiment. It is found that the axial ratio bandwidth could be enhanced considerably when a thicker substrate is used, provided that a U-slot and/or L-probe is used to effect impedance matching. One of the configurations attains an axial ratio bandwidth (< 3 dB) of about 14% within the impedance matching band when the substrate thickness is about 0.2λ o .

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“…The proposed antennas are also suitable for sequential array design. By using sequential rotation technique, even wider AR bandwidth could be obtained [4][5][6].…”

Section: Resultsmentioning

confidence: 99%

“…Although many papers have been devoted to the U-slot and Lprobe patches in the last decade [1][2][3][4][5][6][7][8][9], the studies were concerned with linear polarization. There has been no systematic study of the application of these techniques to single feed circularly polarized (CP) patch antennas.…”

Section: Introductionmentioning

confidence: 99%

Design and Study of Wideband Single Feed Circularly Polarized Microstrip Antennas

Yang¹,

Lee²,

Kishk³

et al. 2008

PIER

195

122

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“…To achieve the antenna design we have studied, the design of four-band slot antenna for the GPS, WiMAX which also used to propose the Wireless-AreaNetwork (WLAN) using the Reconfigurable antenna [1] Monopole antenna operates only at two frequencies, a multi-band planar inverted F-antenna used for the wireless-wide-area-network for different frequencies [2]. A multi-band patch antenna used for varying the polarization states in different bands [3], dual-band loop antenna used to achieve the frequencies of 2.4/5.2/5.8 GHz [4]. A tuneable Multiband Micro strip Antenna is designed, capable of turning its operating frequency in 5GHz band which has two slots of E & U shape are etched to achieve multiband resonance [6].…”

Section: Introductionmentioning

confidence: 99%

Reconfigurable antenna design for soil testing to improve soil quality

Kumar¹,

Ramesh²

2018

IJET

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The Multi-band Reconfigurable antenna used to achieve the different frequency with low return loss. It achieves the variety applications like soil testing using the antenna data transmission and makes the quality of the soil to improve the production. Effectiveness of the work used to propose that the antenna designed to sense the chemical content of the soil and report the data with the frequency of 2.4 GHz to the operator, which makes the operator to have good crop at the right time. This antenna design also used to have the different frequency of data transmission in the single structure, it produces the frequencies likeWLAN at 1.5GHz, GPS at 2.4GHz, WiMAX at 3.27 GHz and Wi-Fi at 5.17 GHz, which designed using the T-shaped stub and two E-shaped stubs. The Existing antenna can transmit only three frequencies with 70% output efficiency but the proposed antenna design can transmit four different frequencies with 80.5% output efficiency. The simulated and the measured results of four investigated bands are lies between -12.3 dB and -15.5 dB with the Bandwidth of 10KHz which show that the antenna has better performance in all frequency bands. It offers the radiation Patten, return loss, peak gain and efficiency at low cost with high accuracy using microstrip patch antenna.

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“…Cutting a U-slot or E-slot on the patch, with simple structure and significant improvement in bandwidth, becomes one of the widely used methods to achieve a wideband and high gain performance [2]. An antenna fed by coaxial probe with a U-slot on the patch has been proved to provide impedance bandwidth of 10%-40%, even with nonair substrate [3]. However, this structure fed by coaxial probe makes it difficult to build an array in a single layer.…”

Section: Introductionmentioning

confidence: 99%

A Broadband Low Cross-Polarization U-Slot Patch Antenna Array Based on Differential Feed

Zhu¹,

Chen²,

Chen³

et al. 2016

PIER C

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Abstract-In this paper, a single layer 4 × 4 U-slot patch antenna array based on differential feed was developed to achieve a wide bandwidth and low cross polarization with a simple feed network. A U-slot was cut on a radiation patch to realize a wideband performance, and a microstrip-line fed structure was adopted to make the patch and feed network placed in a single layer. In order to reduce extra crosspolarization level in the H-plane caused by cutting U-slot, differential feed is adopted, which also makes it easily integrated with differential devices (such as differential amplifier) directly without baluns. A single layer U-slot patch array based on differential feed and an array having the same structure but based on normal feed were made and compared with each other. The designed differentially-fed patch array has more than 12% measured impedance bandwidth and stable gain at 18-19 dBi across the operating band from 5.2 to 5.88 GHz. The measured result shows that a better asymmetry of radiation pattern in the E-plane and a lower than −45 dB cross-polarization level in the H-plane can be achieved compared with normally-fed array.

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Analysis and design of broad-band single-layer rectangular u-slot microstrip patch antennas

Cited by 314 publications

References 24 publications

Design and Study of Wideband Single Feed Circularly Polarized Microstrip Antennas

Design and Study of Wideband Single Feed Circularly Polarized Microstrip Antennas

Reconfigurable antenna design for soil testing to improve soil quality

A Broadband Low Cross-Polarization U-Slot Patch Antenna Array Based on Differential Feed

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