Adaptive Beam Steering of Rlsa Antenna With Rfid Technology

Jamlos, Mohd Faizal; Rahman, Tharek Bin Abdul; Kamarudin, M. R.; Saad, Puteh; Aziz, Omar Abdul; Shamsudin, and M. Amir

doi:10.2528/pier10071903

Cited by 52 publications

(24 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Additionally, the knowledge on beam-steering effects by the use of different RF PIN and practical solution to improve DC biasing circuitry system is very limited and leave unexplored [4,5,10]. However, in this research, the combination of embedded RF PIN diode with DC biasing circuitry at the ground plane has solved those affects and any unnecessary spurious effect that could be generated from the DC biasing wires.…”

Section: Introductionmentioning

confidence: 99%

Electronically Reconfigurable Beam Steering Antenna Using Embedded Rf Pin Based Parasitic Arrays (Erppa)

Sabapathy¹,

Jamlos²,

Ahmad³

et al. 2013

PIER

View full text Add to dashboard Cite

Abstract-In this paper, an electronically reconfigurable beam steering antenna using embedded RF PIN switches based parasitic array (ERPPA) is proposed for modern wireless communication systems that operate at 5.8 GHz frequency. In the proposed antenna, a single driven element is fed by a coaxial probe, while each of the two parasitic elements is integrated with an RF PIN switches that embedded inside the substrate. In the conventional reconfigurable antennas, the RF PIN switches are mounted on narrow slots created on the top or bottom layer of the radiator/parasitic elements, which could lead to the dimensional changes of the antenna and degrade the performance in terms of beam steering and return loss. However, this research proposes an exclusive solution where the RF PIN diodes at parasitic elements are embedded inside the substrate thus no additional slots have to be created to mount the SMCs on the antenna. In this regard, the proposed antenna is highly competent to eliminate the intermodulation effect generated by the RF PIN diodes and the other passive elements associated with the PIN diodes. In this research, extensive investigations revealed that the parasitic element dimension and the selection of RF PIN switches significantly influence • are achieved in the xz -plane with measured peak gains at θ = −30 • , 0 • and +30 • are 6.5 dBi, 6.5 dBi and 4.9 dBi, respectively. The fabricated antenna with Taconic substrate provides a good agreement with the simulation result. Furthermore, the performance of ERPPA is further tested by outdoor measurement using a wireless bridging system to verify the functionality of the designed antenna at the angles of −45• . The analysis with the switched diversity combining scheme has demonstrated that a maximum diversity gain approximately of 12 dBi is offered by the proposed antenna. With a compact dimension of 32 mm by 76 mm, the proposed antenna is a potential candidate in point-to-point wireless applications such as WIFI application.

show abstract

Section: Introductionmentioning

confidence: 99%

Electronically Reconfigurable Beam Steering Antenna Using Embedded Rf Pin Based Parasitic Arrays (Erppa)

Sabapathy¹,

Jamlos²,

Ahmad³

et al. 2013

PIER

View full text Add to dashboard Cite

show abstract

“…[1][2][3][4]. This is because the UHF band can provide high data transfer rate and broad readable range.…”

Section: Introductionmentioning

confidence: 99%

Wideband Circularly Polarized Uhf Rfid Reader Antenna With High Gain and Wide Axial Ratio Beamwidths

Wang¹,

Li²,

Yang³

et al. 2012

PIER

View full text Add to dashboard Cite

Abstract-A broadband circularly polarized patch antenna with high gain and wide axial ratio beamwidths is proposed for ultra-highfrequency (UHF) RF identification (RFID) applications in this paper. The antenna is composed of a square patch, a feed network printed on the bottom side of the substrates and an antenna radome. The CP radiation of the proposed antenna is excited by four cylinder probes which transmit four signals that have equal amplitude with quadrature phase difference (0 • , 90 • , 180 • , and 270 • ) generated from the feed network. To obtain an optimum peak gain and a broad CP bandwidth, 100 Ω isolation resistor is omitted in the feed network for obtaining high radiation efficiency, and the effects of varying the feed positions and dimensions of the various parameters on the antenna performances are respectively investigated. Simulation results are compared with the measurements, and a good agreement is obtained. The measured results show that the proposed antenna can provide broad impendence bandwidth of 19.7% (815-993 MHz) (reflection coefficient less than −15 dB), a maximum gain of 9.65 dBi, and a 3-dB axial ratio (AR) bandwidth of about 11% (860-960 MHz). The results indicate that the proposed antenna is an excellent candidate for UHF RFID reader system. At last, read performance of the proposed antenna array in RFID systems is presented, which verify the superior features of the proposed antenna in practical RFID system applications.

show abstract

“…Due to the advantages of RLSA antennas, such as high gain, flat and high efficiency [2][3][4], RLSA antennas were also developed for other applications, such as for Wi-Fi [5][6][7][8][9][10][11][12][13][14]. In contrast to satellite applications, Wi-Fi needs much smaller antennas.…”

Section: Introductionmentioning

confidence: 99%

A Design of Compact Radial Line Slot Array (Rlsa) Antennas for Wi-Fi Market Needs

Purnamirza¹,

Kristanto²,

Ibrahim³

2016

PIER Letters

View full text Add to dashboard Cite

Abstract-This paper proposes a compact Radial Line Slot Array (RLSA) antenna for 5.8 GHz Wi-Fi devices, which meets market needs. Various small RLSA antenna models with radius of 140 mm, were designed using extreme beamsquint technique. The models then were simulated to result in a best model. A prototype of the best model was then fabricated and measured to verify the simulation. The measured parameters are: a gain of 18 dBi, bandwidth of 1 GHz, beamwidth of 20 • , and mainlobe to sidelobe ratio of 15 dB, which meet antenna specifications for market needs. The prototype was tested as an antenna for a Wireless Fidelity (Wi-Fi) device in order to show its performance. The test showed that the prototype worked properly. Lastly, we compared the size of the prototype with the average size of various antennas available in markets. We found that the prototype had the advantage of small size and flat, with similar performance.

show abstract

Adaptive Beam Steering of Rlsa Antenna With Rfid Technology

Cited by 52 publications

References 15 publications

Electronically Reconfigurable Beam Steering Antenna Using Embedded Rf Pin Based Parasitic Arrays (Erppa)

Electronically Reconfigurable Beam Steering Antenna Using Embedded Rf Pin Based Parasitic Arrays (Erppa)

Wideband Circularly Polarized Uhf Rfid Reader Antenna With High Gain and Wide Axial Ratio Beamwidths

A Design of Compact Radial Line Slot Array (Rlsa) Antennas for Wi-Fi Market Needs

Contact Info

Product

Resources

About