Bidirectional Ultra-Wideband Antenna Using Rectangular Ring Fed by Stepped Monopole

Lamultree, Suthasinee; Phongcharoenpanich, Chuwong

doi:10.2528/pier08080103

Cited by 17 publications

(10 citation statements)

References 28 publications

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“…If the number of steps at the corners increases infinitely, the steps become smaller and reach a point that the step path (R 1 ) acts as a line with infinite points. By calculating W 1 and L 1 using Equations (10) and (11), R 1 acts as hypotenuse in a right triangle with W 1 , L 1 sides, which can be calculated using Equation (14). Figure 9 shows the geometric details and photos of fabricated proposed broadband MRMPA.…”

Section: Stage Vi: Broadband Mrmpa With Straight Linementioning

confidence: 99%

“…MPAs comprise narrow BW that is approximately 1-5%, which is the most major limiting factor for its widespread applications. Most of the previous contributions in this research area were to increase the BW of MPAs [1,2], and therefore, several measures have been introduced to achieve this objective, including modified shape patches, which is a method of modifying the shape of patch [3][4][5][6][7][8], utilization of slotted ground structure [9][10][11][12][13], modification of rectangular and circular patches to rectangular [14] and circular rings [15,16]. Another method includes an impedance matching network method proposed to enhance the MPAs BW [17][18][19].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Broadband Modified Rectangular Microstrip Patch Antenna Using Stepped Cut at Four Corners Method

Moradikordalivand¹,

Rahman²

2013

PIER

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Abstract-In this paper, a new method that called the "Stepped Cut at Four Corners" is introduced to design a multi-mode/broadband modified rectangular microstrip patch antennas (MRMPAs). In order to become acquainted with the new method, the design process of a monopole broadband MRMPA suitable for multifunctional wireless communication bands is explained. The methodology of the proposed broadband MRMPA design is presented in six stages. The first stage is designing a single-mode RMPA. Subsequently, by creating a step at the corners using the proposed method a dual-mode antenna is obtained at the second stage, while the triple-mode and multi-mode antennas are designed, at the third and fourth stages respectively. Two types of broadband antennas are obtained, the stepped line and straight line antennas. By increasing the number of steps, the antenna's operating bandwidth (BW), with return loss less than −10 dB, covers the frequency range from 900 MHz to 2.6 GHZ, which is suitable for GSM (900 MHz and 1.5 GHz), WiFi (2.4 GHz) and LTE (2.6 GHz) applications. In addition, the antenna prototype has been fabricated and measured in the all stages, in order to validate the simulation results, and there is a close agreement between the simulated and measured results.

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Section: Stage Vi: Broadband Mrmpa With Straight Linementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Broadband Modified Rectangular Microstrip Patch Antenna Using Stepped Cut at Four Corners Method

Moradikordalivand¹,

Rahman²

2013

PIER

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show abstract

“…To date, few types of phase shifter have been reported by researchers. Since the allocation of UWB frequency range by Federal Communications Commission (FCC) in February 2002 [5], more research have been conducted on the design of microwave devices including phase shifters, couplers [6][7][8], filters [9], power amplifiers [10][11] and also antenna [12][13] that capable to operate for UWB applications.…”

Section: Introductionmentioning

confidence: 99%

Design of ultra wideband phase shifter with improved scattering parameter performances

Zaidel

Rahim

Seman

et al. 2016

2016 International Conference on Advances in Electrical, Electronic and Systems Engineering (ICAEES)

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Abstract-Aiming to achieve Ultra Wideband (UWB) performance, this paper presents an improvement of the squareshaped phase shifter design, which covers from 2.8 GHz to 10.6 GHz by implementing step impedances in order to improve the impedance matching of the phase shifter, whilst leads to better scattering parameter results. The phase shifter design is formed by using multilayer technique where 3 layers of conductors are interleaved with 2 layers of substrates between each of the conductor's layer. This technique ensures the phase shifter design to be small in size. Computer Simulation Technology (CST) Microwave Studio is used in developing the design and optimization stage. Meanwhile the measurement is done by using Vector Network Analyzer (VNA). The square-shaped phase shifter with step impedances enhances the bandwidth up to 34% as compared to the conventional square-shaped phase shifter. Additionally, analysis on air gap and alignment is also presented in order to show how both conditions affect the performance of the proposed phase shifter design.

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“…For some specific services where the mobile users move along the straight roads such as highways, railways and tunnels, bidirectional antennas are especially preferred to be used in order to maximize the link efficiency [7][8][9][10][11][12][13][14].…”

Section: Introductionmentioning

confidence: 99%

A Compact Stacked Bidirectional Antenna for Dual-Polarized Wlan Applications

Jia¹,

Li²

2013

PIER C

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A compact stacked bidirectional antenna is presented for dual-polarized 2.4 GHz WLAN applications in this paper. The antenna consists of an orthogonal coupling feed driver and stacked director array, with the overall size 50 × 50 × 160 mm 3 . Dual-polarization is excited by the orthogonal coupling lines, and the director array contributes to the bidirectional radiation. Both the coupling feed driver and directors are printed on FR4 substrate and supported by plastic pillars. The measured bandwidth of the two ports are 2.33-2.62 GHz (11.8%) and 2.32-2.64 GHz (13%) under the condition of VSWR less than 2. The isolation between two ports is lower than −20 dB. The peak gains along one radiation direction are 9.65 dBi and 9.30 dBi for each port, with highly symmetric bidirectional beam pattern. The proposed antenna is compact and suitable for dualpolarized bidirectional 2.4 GHz WLAN applications.

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Bidirectional Ultra-Wideband Antenna Using Rectangular Ring Fed by Stepped Monopole

Cited by 17 publications

References 28 publications

Broadband Modified Rectangular Microstrip Patch Antenna Using Stepped Cut at Four Corners Method

Broadband Modified Rectangular Microstrip Patch Antenna Using Stepped Cut at Four Corners Method

Design of ultra wideband phase shifter with improved scattering parameter performances

A Compact Stacked Bidirectional Antenna for Dual-Polarized Wlan Applications

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