A Reconfigurable Ultrawideband (Uwb) Compact Tree-Design Antenna System

Jusoh, M.; Jamlos, Mohd Faizal; Kamarudin, M. R.; Malek, Mohd Fareq Abdul; Romli, M. A.; Ahmad, Z. A.; Mat, M.H.; Zulkifli, MZ

doi:10.2528/pierc12041011

Cited by 17 publications

(12 citation statements)

References 9 publications

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“…Meanwhile, the lengths of RRS-1, RRS-2, RRS-3 and RRS-4 are set to 31 mm, 40 mm, 36 mm and 42 mm, respectively based on a few parametric studies. Figure 3 shows photographs of the proposed antenna made of Each switch is developed from the surface mount component (SMC) and consists of one PIN diode, two capacitors, two inductors and a DC supply [17][18][19][20]. The capacitors will allow radio frequency (RF) signals to flow and block the DC simultaneously while the inductors allow the DC to flow and choke off the RF signals as well.…”

Section: Antenna Structurementioning

confidence: 99%

A Fabrication of Intelligent Spiral Reconfigurable Beam Forming Antenna for 2.35-2.39 GHZ Applications and Path Loss Measurements

Jusoh¹,

Jamlos²,

Kamarudin³

et al. 2013

PIER

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Abstract-A reconfigurable beam forming antenna prototype using a spiral feed line is proposed in this paper. The presented antenna is integrated with PIN diode switches at a specific location of spiral feed line. It is discovered that the beam steering ability is greatly influenced by the spiral arm feed network. Four PIN diode switches have been incorporated at four different arms of spiral feed line to realize a beam forming ability. The intelligence behaviour of this antenna is conferred when the switches are connected to programmable intelligent computer (PIC) microcontroller. Certain configurations of PIC allow the antenna's radiation patterns to be adaptively changed within 0.01 ms. Therefore, the proposed antenna is capable of electronically forming the beam up to four different angles of +176 • , +10 • , −1 • and −12 • . This antenna is small in size with 100 mm by 100 mm of substrate dimension. In this research, the site field antenna performance relying on the received signal strength (RSS) testing is tested intensively in Universiti Malaysia Perlis with varied distant points of line-ofsight (LOS) and non-line-of-sight (NLOS) propagation. With good simulation and measurement results, this antenna could be a promising candidate to be installed in applications such as a smart antenna system, cognitive radio, WiMAX and long term evolution (LTE).

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Section: Antenna Structurementioning

confidence: 99%

A Fabrication of Intelligent Spiral Reconfigurable Beam Forming Antenna for 2.35-2.39 GHZ Applications and Path Loss Measurements

Jusoh¹,

Jamlos²,

Kamarudin³

et al. 2013

PIER

Self Cite

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“…The separation distance between both antennas is set to 1 m as highlighted by the red arrow shown in Figure 4. The power received against power transmitter ( P R / P T ) represents the transmission coefficient at port two ( S 21 ) that measured by the Agilent Technologies E83628 PNA Network Analyzer [13]. With all the parameters collected, the output gain based on Eq.…”

Section: Antenna Configuration and Measurementmentioning

confidence: 99%

A compact high directional beam antenna for WiMAX and WiFi application

Jusoh

Jamlos

Kamarudin

et al. 2013

Micro & Optical Tech Letters

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A high directional beam antenna for wireless interoperability microwave access (WiMAX) and wireless fidelity (WiFi) is proposed. With a single circular radiator and a full ground plane, the antenna has successfully achieved a high directional gain of 6.7 dBi. Moreover, the proposed antenna is compact with a square substrate dimension of 50 × 50 mm2. The implementation of the slot with a dimension of 0.8 × 10 mm2 at the center of the radiator has resulted the circular current distribution that leads to the antenna efficiency of up to 87%. The patch antenna performed under tolerable S11 of −10 dB covering operating frequencies of 2.36 GHz up to 2.40 GHz. Parametric study of the narrow slot size, coaxial port position, and the substrate size have been conducted in order to achieve the best antenna dimension with an optimum performance. The measured radiation patterns of the proposed single antenna show a top main beam of 0° and a peak side‐lobe level of −17.6 dB, exhibiting a good agreement with the simulated results. Both simulation and measurement results prove that this optimized circular antenna is reliable for IEEE 802.16d fixed WiMAX, IEEE 802.16e mobile WiMAX, and WiFi application. © 2013 Wiley Periodicals, Inc. Microwave Opt Technol Lett 55:1686–1692, 2013; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.27638

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“…A conventional switchable antenna refers to a radiator capable of characteristic reconfiguration, either in terms of operating frequency, radiation patterns, polarizations or directivity through the control of RF switches [12][13][14][15][16][17][18][19][20][21][22]. These RF switches are only a small addition to the hardware requirements to enable this reconfigurable scheme and this research realize the utilization of silver loaded epoxy adhesive is effective in providing a solderless connection between the conductive textiles compared to larger and more complex elements such as phase shifters shown in Figure 1.…”

Section: Introductionmentioning

confidence: 97%

A NOVEL 2.45 GHz SWITCHABLE BEAM TEXTILE ANTENNA (SBTA) FOR OUTDOOR WIRELESS BODY AREA NETWORK (WBAN) APPLICATIONS

Jais¹,

Jamlos²,

Jusoh³

et al. 2013

PIER

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Abstract-A novel switchable beam textile antenna (SBTA) for wireless body area network (WBAN) applications is proposed. The SBTA is centrally-fed by a coaxial probe and the power distributed over four circular radiating elements. Four RF switches are integrated through which the SBTA is able to generate beam steering in four directions: 0 • , 90 • , 180 • , and 270 • , with a maximum directivity of 6.8 dBi at 0 • . Its small size (88 mm × 88 mm) and flexibility enables the structure to be easily integrated into safety jackets, rain coats, etc., for tracking, and search and rescue communication purposes. The structure successfully integrates reconfigurability into a wearable textile antenna.

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A Reconfigurable Ultrawideband (Uwb) Compact Tree-Design Antenna System

Cited by 17 publications

References 9 publications

A Fabrication of Intelligent Spiral Reconfigurable Beam Forming Antenna for 2.35-2.39 GHZ Applications and Path Loss Measurements

A Fabrication of Intelligent Spiral Reconfigurable Beam Forming Antenna for 2.35-2.39 GHZ Applications and Path Loss Measurements

A compact high directional beam antenna for WiMAX and WiFi application

A NOVEL 2.45 GHz SWITCHABLE BEAM TEXTILE ANTENNA (SBTA) FOR OUTDOOR WIRELESS BODY AREA NETWORK (WBAN) APPLICATIONS

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