Design and Bandwidth Enhancement of V-slot loaded Rectangular Microstrip Patch Antenna for Broadband Applications (original) (raw)
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Bandwidth enhancement of rectangular microstrip patch antenna using slots
In this paper, a new design of rectangular microstrip patch antenna (RMPA) without slot, with slots and array is proposed and analyzed. The designed antenna has been simulated using HFSS software. The simulated results for return loss, radiation pattern and gain are presented and discussed. The bandwidth of proposed antenna is 2.4GHz-5.9GHz for VSWR(voltage standing wave ratio)<2 is achieved on the basis of <-10dB return loss as an acceptable reference in wireless applications which cover worldwide interoperability for microwave access (WiMAX) and wireless local area network (WLAN) and other applications. Gain of 10dB is achieved for antenna array.
DESIGN OF V-SLOTTED MICROSTRIP PATCH ANTENNA FOR YIELDING IMPROVED GAIN BANDWIDTH PRODUCT
In this paper, a novel antenna design for improvement of patch antenna gain and bandwidth has been proposed.The proposed antenna design is a V-slotted rectangular microstrip patch antenna for yielding improved gain bandwidth product suitable for WLAN and Wi-Max applications. The antenna operates at 5.9 GHz and has the maximum achievable bandwidth obtained about 1.04Ghz and gain of 6.22dBi .The microstrip patch is constructed using a single layer RT/duroid (5880) substrate, having dielectric constant εr = 2.2 and loss tangent tan δ =0.001.A co-axial feed is used and the antenna is simulated using IE3D software from Zeland based on method of moments.
International Journal of Recent Technology and Engineering (IJRTE), 2019
This paper a compact V- shaped slotted microstrip antenna is designed and utilized in the various communication systems. The most common important parameters are improved .The results of the measured and simulated results for V-slotted microstrip patch antenna has been analyzed . The V slotted patch antenna has been designed to tested in laboratory .The measured and simulated results are exhibits good agreement. The proposed antenna achieved 174MHz of bandwidth at resonance frequency of 2.4 GHz with VSWR ≤ 2. The antenna constructed at centre frequency of 2.44 GHz. The antenna has been designed and simulated using Ansoft HFSS software tools. Then, the antenna parameters are varied in a specific intervals and analysis the designed Patch antenna. Then antenna bandwidth can be enhanced by increasing the substrate thickness. The measured resonant frequency is found 2.592 GHz. The measured value of the bandwidth of the antenna is 75 MHz. Then, the variation of parameters and its performa...
A Slotted Rectangular Microstrip Patch Antenna for Wideband Wireless Applications
International Journal of Engineering and Technology, 2017
This paper presents the utilization of slots with full and partial ground plane in rectangular Microstrip Patch Antenna (MPA). The partial ground plane has been introduced to increase the bandwidth of designed antenna. Proposed antenna is designed on FR4 glass epoxy substrate with 1.6mm thickness and dielectric constant 4.4. Designing and simulation has been carried out by using HFSS V13 software. MPA with full ground plane works on four resonant frequency bands, but the value of gain and bandwidth is less. Proposed antenna with varying partial ground plane has been designed and observed that it adorns the optimal results at ground length 12mm. The MPA with partial ground plane with ground length 12mm works on two resonant frequency bands (2.21GHz and 7.06GHz) with the value of gain (3.92dB and 4.71dB) and bandwidth (949MHz and 1030MHz) respectively. These values are at the acceptable level which meets the requirement of wireless application such as bluetooth (2.41-2.49GHz) and point to point high speed wireless communication (5.92-8.5GHz). Keyword-MPA, FR4, HFSS, bluetooth, slotted patch, microstrip I. INTRODUCTION Microstrip patch antennas have been widely used in the field of wireless communications like mobile, radar and satellite because of its unique features such as compact size, ease of fabrication, low profile, less weight and ease of installation [2]. Now days, the antenna with multiband and wideband characteristics are more preferred in the wireless systems [3]. These antennas are capable of working on different applications when installed on wireless devices. By the use of multiband or wideband antennas a single device can be used for various wireless applications under specified range of frequencies [4]. Due to these features and large demand, microstrip antennas become a major area of research for the researchers [5]. Numerous researches have been carried out in recent years by the researchers to achieve multiband and wideband applications [6]. Slotted patch antennas are designed to achieve multiband characteristics [7]. But few drawbacks have been observed in this antenna design such as it exhibits less bandwidth and less value of gain [8]. To remove these drawbacks the work has been done on the ground plane of antenna because it acts as impedance matching circuit for the antenna [9]. Partial ground plane [10], defected ground plane [9], and slotted ground plane have been designed by many researchers to achieve wideband characteristics and high value of gain for different wireless standards [11]. These antennas can be capable of work under various wireless applications such as WiMAX, WLAN, Wi-fi, bluetooth, satellite communication and radar communication [12]. In this paper slotted rectangular patch antenna is designed for wideband applications. Proposed design is analysed for both the multiband and wideband characteristics by using full and partial ground plane. Detailed design and simulated results of proposed antenna with the variation in ground plane is discussed in section 2 and 3. II. ANTENNA DESIGN AND CONFIGURATION The proposed antenna uses the FR4 glass epoxy substrate board with the thickness of 1.6mm and dielectric constant 4.4. Proposed antenna is designed by using the frequency of 2.5GHz, which lie in the range of bluetooth application. Dimensions of the rectangular patch have been calculated by using the equations (1) to (5) as shown below [1]. By using these equations the length and width of proposed antenna is found to be 28.2mm and 36.5mm respectively. The line feeding technique is used to provide the excitation to the designed antenna and the position of feed is optimized to get a good impedance matching, hence located at the centre below the radiating element as shown in Fig. 1(a). Full ground plane with length and width equal to the dimensions of the substrate is shown in Fig. 1(b) and partial ground plane with width 45.6mm and length 10mm is shown in Fig. 1(c). In the proposed antenna design the slots has been introduced to obtain the novel structure of microstrip antenna. The exact position and the symmetry between the slots are very necessary to obtain the accurate results from the designed antenna. These slots help the antenna to exhibit multiband characteristics and are also helpful in increasing the gain and bandwidth of antenna. Process of designing the slots and positioning the slots in the
Bandwidth Enhancement of Microstrip Slot Antenna
Microstrip Patch Antenna is generally used in modern communication devices due to its low cost and small area. But have narrow bandwidth so they have limited applications. Bandwidth enhancement is done by using various slot shapes in combination with different feed geometries. The slots can be of various shapes such as 'U' shaped, 'E' shaped and rectangular shaped slots. Here, the proposed wide-slot antennas employ E-shaped slot. The E-shaped radiating slot is etched on a rectangle substrate with a relative dielectric constant. A substrate of low dielectric constant is selected to obtain a compact radiating structure that meets the demanding bandwidth specification. The characteristic impedances of the microstrip lines are nearly 50Ω. This design is simulated using ''Integral Equation three Dimensional'' (IE3D) software package of Zealand. The simulated results show that the antenna resonates at 2.66GHz and has bandwidth upto 12%.
Two printed wide-slot antennas with E-shaped patches and slots, for broadband applications, are proposed. They are fed by a coplanar waveguide (CPW) and a microstrip line with almost the same performances. Detailed simulation and experimental investigations are conducted to understand their behavior and optimize for broadband operation. Good agreement between the measurement and simulation has been achieved. The impedance bandwidths, determined by 10-dB reflection coefficient, of the proposed slot antennas fed by microstrip line and CPW are examined from both measurement and simulation. We have obtained the large operating bandwidth by choosing suitable combinations of feed and slot shapes. In order to achieve wider operation bandwidth both of the designed antennas have round corners on the wide slot and patch. Meanwhile, the proposed antennas exhibit almost omnidirectional radiation patterns, relatively high gain, and low cross polarization. A comprehensive numerical sensitivity analysis has been done to understand the effects of various dimensional parameters and to optimize the performance of the designed antennas. Results for reflection coefficient, far-field E and H-plane radiation patterns, and gain of the designed antennas are presented and discussed. At the end, we compare the simulated and measured results and found the enhancement of bandwidth of E-shape microstrip antenna. Abstract-Two printed wide-slot antennas with E-shaped patches and slots, for broadband applications, are proposed. They are fed by a coplanar waveguide (CPW) and a microstrip line with almost the same performances. Detailed simulation and experimental investigations are conducted to understand their behavior and optimize for broadband operation. Good agreement between the measurement and simulation has been achieved. The impedance bandwidths, determined by 10-dB reflection coefficient, of the proposed slot antennas fed by microstrip line and CPW are examined from both measurement and simulation. We have obtained the large operating bandwidth by choosing suitable combinations of feed and slot shapes. In order to achieve wider operation bandwidth both of the designed antennas have round corners on the wide slot and patch. Meanwhile, the proposed antennas exhibit almost omnidirectional radiation patterns, relatively high gain, and low cross polarization. A comprehensive numerical sensitivity analysis has been done to understand the effects of various dimensional parameters and to optimize the performance of the designed antennas. Results for reflection coefficient, far-field E and H-plane radiation patterns, and gain of the designed antennas are presented and discussed. At the end, we compare the simulated and measured results and found the enhancement of bandwidth of E-shape microstrip antenna.
International Journal of Electrical and Computer Engineering (IJECE)
This paper presents design of a rectangular microstrip patch antenna by using multi-slotted patch and partial grounding plane techniques for both the gain and bandwidth enhancement at the same time. The antenna is designed and simulated for ultra-wideband (UWB) applications using a high frequency structure simulator (HFSS) on FR4_epoxy substrate having a size of 30×20 mm with a dielectric permittivity of 4.4, a tangent loss of 0.02, and a thickness of 0.8 mm and excited by a simple 50 Ω microstrip feed line. The simulation results show that the antenna attains an improved gain of 8.06 dB with a wider impedance bandwidth of 19.7 GHz ranges from 3.15 to 22.85 GHz. The antenna also achieves an efficiency of 96.83% with a return loss of -28.35 dB, and a directivity of 9.39 dB within the entire frequency range. These results imply that the deployment of multi-slotted patch and partial grounding techniques in designing a rectangular microstrip patch antenna is effective in improving its p...
Study of Microstrip Slotted Antenna for Bandwidth Enhancement
Global Journal of Research In Engineering, 2012
Two printed wide-slot antennas with E-shaped patches and slots, for broadband applications, are proposed. They are fed by a coplanar waveguide (CPW) and a microstrip line with almost the same performances. Detailed simulation and experimental investigations are conducted to understand their behavior and optimize for broadband operation. Good agreement between the measurement and simulation has been achieved. The impedance bandwidths, determined by 10-dB reflection coefficient, of the proposed slot antennas fed by microstrip line and CPW are examined from both measurement and simulation. We have obtained the large operating bandwidth by choosing suitable combinations of feed and slot shapes. In order to achieve wider operation bandwidth both of the designed antennas have round corners on the wide slot and patch. Meanwhile, the proposed antennas exhibit almost omnidirectional radiation patterns, relatively high gain, and low cross polarization. A comprehensive numerical sensitivity an...
Enhancing the Bandwidth of a Microstrip Patch Antenna using Slots Shaped Patch
2013
In this work, three different geometry shapes, the U, E and H are developed from a rectangular patch of the width (W) = 32mm and length (L) = 24mm. The proposed antennas are simulated using Sonnet software and the results compared with the conventional rectangular patch antenna. The results obtained clearly show that, bandwidth of conventional rectangular microstrip antenna can be enhanced from 4.81% (100MHz) to 28.71% (610 MHz), 28.89% (630MHz) and 9.13% (110MHz) respectively using U, E and H-patch over the substrate. The E-shaped patch antenna has the highest bandwidth followed by U-shaped patch antenna and Hshaped patch antenna. The substrate material used for the proposed antennas is Alumina 96%, with the dielectric constant of 9.4 and loss tangent of 4.0e-4. The proposed antennas may find applications in Wireless Local Area Network (WLAN).
Broadband Slotted Rectangular Shaped Microstrip Antenna For WI-Max Applications
Many applications require very broadband antenna, but the narrow bandwidth of a microstrip antenna restricts its wide usage. The aim of this paper is to enhance the bandwidth of rectangular microstrip patch antenna. For this purpose, we cut four slots in the proposed antenna. The dielectric substrate material of the antenna is glass epoxy FR4 having ε r =4. 4 and loss tangent 0.025. The performance of the final modified antenna is compared with that of a conventional rectangular microstrip antenna. The designed antenna has two resonant frequencies 5.42 GHz and 5.70 GHz. So this antenna is best suitable for the Wi-Max applications. The designed antenna offers much improved impedance bandwidth 10.45 %. This is approximately two times higher than that in a conventional rectangular patch antenna (Bandwidth= 5.34%) having the same dimensions.