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Amit K. Panda,Asit K. Panda
International Journal of Advances in Engineering and Technology , 2012,
Abstract: A compact multiband patch antenna embedded with gasket fractal slots is proposed in this paper. The structure consists of square patch element with modified gasket slots on both radiating edge side. The antenna is fed by 50Ω co-planar waveguide (CPW) to make the structure purely planar. The investigation took place ranges between 1-7.5 GHz using CST MWS electromagnetic simulator. There are 3 resonant frequencies appeared at 2.45GHz, 3.6GHz & 5.6 GHz. From the return loss plot it is seen the antenna achieved the IEEE Bluetooth / WLAN (2.4-2.484 GHz), WiMAX (3.4-3.69 GHz) & WIFI (5.1-5.825 GHz) frequency band with -10 dB return loss and also nearly omni-directional radiation patterns achieved. The peak realized antenna gain is around 5dB in all distinct bands.
Reconfigurable Single and Multiband Inset Feed Microstrip Patch Antenna for Wireless Communication Devices
Dalia Mohammed Nasha Elsheakh;Hala A. Elsadek;Esmat Abdel-Fattah Abdallah;Magdy F. Iskander;Hadia M. El-Henawy
PIER C , 2010, DOI: 10.2528/PIERC10011503
Abstract: Two novel designs for compact reconfigurable antennas are introduced for wireless communication devices. These designs solve the steering frequency problem by tracking the desired resonance frequency or by generating various operating frequency bands to be selected electronically. In the first design, the length of the rectangular defected ground structure (RDGS) is electrically adjusted to change the resonant frequency of the MPA. While in the second design different turns of spiral AMC ground plane generate frequency bands, or modes, that are selected/optimized to serve different communication systems simultaneously. These systems may include various combinations of bluetooth, S-band and wireless local-area network (WLAN). These designs have several advantages as the total antenna volume can be reused, and therefore the overall antenna will be compact, although, the radiation of the MPA is kept fixed without any degradation. The designs are verified through both numerical simulations and measurement of a fabricated prototype. The results confirm good performance of the single and multiband reconfigurable antenna designs.
Comparative Analysis of S-Shaped Multiband Microstrip Patch Antenna  [PDF]
International Journal of Advanced Research in Electrical, Electronics and Instrumentation Engineering , 2013,
Abstract: An antenna is the most important element of any wireless communication. This paper is highly focused on the multiband application of the Microstrip Patch Antenna. In first phase the S – shaped Multiband Microstrip Patch antenna is simulated and analyzed. Comparative analysis between Common S-shaped Multiband Microstrip Patch Antenna, Defected Ground Structure S-shaped Multiband Microstrip Patch Antenna using Complementary Split Ring Resonator and S – shaped Multiband Microstrip Patch Antenna using Metamaterial is shown in this paper. The proposed antenna is designed for various multiple applications such as Bluetooth, L and S band applications which are used in Medical Application and ISM Application, in the operating range 1-5 GHz. Here S-shaped meandered patch of dimension 50×50 mm2 is analyzed. Design results of VSWR, Return loss S11, Total Gain plot and Total Directivity Plot are shown in this paper. Design results are obtained by a HFSS (High Frequency Structure Simulator) which is used for simulating microwave passive components.
Design and Investigation of Disk Patch Antenna with Quad C-Slots for Multiband Operations  [PDF]
J. A. Ansari,Sapna Verma,Ashish Singh
International Journal of Microwave Science and Technology , 2014, DOI: 10.1155/2014/504363
Abstract: An investigation into the design and fabrication of multiband disk patch antenna with symmetrically quad C-slots is presented in this paper. The proposed antenna shows multiband resonance frequencies which highly depend on substrate thickness, dielectric constant, and radius of the disk patch. By incorporating two pairs of C-slots in optimum geometry on the radiating patch, the proposed antenna operates between 2 and 12?GHz at different frequency bands centered at 2.27, 7.505, 9.34, 10.33, and 11.61?GHz. The other antenna parameters are studied like gain, antenna efficiency, and radiation pattern. The proposed antenna may find applications in S-, C-, and X-band. The results are carried out with the aid of HFSS and MOM-based IE3D simulator. The measured and simulated results are in good agreement with each other. 1. Introduction There is increasing demand for antennas having compact size and multiband operation. Since each communication protocol may operate in a distinctive frequency band, instead of using several antennas, it is highly desirable to have one broadband or multiband antenna to meet the needs of multiple systems. Microstrip disk patch antennas are suitable for many wireless communication applications and frequency bands such as S-band (2–4?GHz), C-band (4–8?GHz), and X-band (8–12?GHz). In addition, compact size with multiband operation is a demand factor for several applications such as mobile communication. The demand of multiband antennas is fulfilled by integrating the diode switches, cutting slots of different geometries, multiple narrow slits in rectangular patch antenna, slot antenna with edge-fed, compact fork shaped antenna, and compact slot on the radiating patch [1–4]. There are some other techniques reported in literature to obtain multiband behaviour of the antennas such as employing the two microstrip line feeds placed in orthogonal directions [5] and circular ring antenna with a defected ground plane excited by Y-shape-like microstrip feed [6]. Recently, it has been shown that multiband resonance can be achieved by using edge feeding in two circular slots each having T-shaped patch which highly depends on the diameter [7] and cutting two pairs of orthogonal narrow slits on stacked circular disk [8]. However, some of these antenna structures involve complex calculation, sophisticated design structures, and large size as compared to proposed antenna. In this paper, a quad C-slots disk patch antenna optimized for simplicity in design is proposed for multiband operation. The numerical analysis and geometry refinement of the
Miniaturized Compact Patch Antenna for Multiband Applications Using Combination of Sierpinski Carpet & Giuseppe Peano Fractral Geometries
Pradip P. Patel,Sameena Zafar,,Syed Uvaid
International Journal of Innovative Technology and Exploring Engineering , 2013,
Abstract: Modern telecommunication system require antenna with wider bandwidth and smaller dimensions. Various antennas for wide band operation have been studied for communication and radar system. A fractal monopole antenna is proposed for the application in the UWB frequency range, which is designed by the combination of two fractal geometries. The first iterations of Giusepe Peano fractal are applied on the edges of a square patch, and a Sierpinski Carpet fractal is formed on its surface. The fractal antenna is preferred due to small size, light weight and easy installation. A fractal micro strip antenna is used for multiband application in this project provides a simple and efficient method for obtaining the compactness. A sierpinski carpet based fractal antenna is designed for multiband applications. It should be in compactness and less weight is the major point for designing an antenna. This antenna is providing better efficiency.
Multiband Microstrip Antenna with Perturbations for Wireless Communication
International Journal of Advanced Research in Electrical, Electronics and Instrumentation Engineering , 2013,
Abstract: This paper presents the design of microstrip antenna with perturbations for applications in wireless communication. The antenna shows good performance while resonating at different frequencies. The antenna is designed on size of 30 x 30 x 1.6 mm3. The design is achieved by digging square holes on all sides & at centre of the square patch. Design & optimization was done using Zeland IE3D simulation software. Results of simulation show that at 1.7 GHz, 3.2 GHz& 4.7 GHz, the antenna has a return loss of -25 dB, -27 dB & -14 dB respectively with reasonably good efficiency & directivity
A Comact Microstrip Patch Antenna for Wireless Communication
Ujjal Chakraborty;Samiran Chatterjee;Santosh Kumar Chowdhury;Partha Pratim Sarkar
PIER C , 2011, DOI: 10.2528/PIERC10101205
Abstract: A single feed compact rectangular microstrip antenna is presented in this paper. A triangular slot is introduced at the upper edge of the patch to reduce the resonant frequency. A small piece of triangular patch is grown within the triangular slot to improve the gain bandwidth performance of the antenna. The antenna size has been reduced by 46.2% when compared to a conventional square microstrip patch antenna with a maximum of 160 MHz bandwidth and -27.36 dB return loss. The characteristics of the designed structure are investigated by using MoM based electromagnetic solver, IE3D. An extensive analysis of the return loss, radiation pattern, gain and efficiency of the proposed antenna is presented. The simple configuration and low profile nature of the proposed antenna leads to easy fabrication and make it suitable for the applications in Wireless communication system. Mainly it is developed to operate in the WiMax frequency range of 3.2--3.8 GHz.
Linear Polarized Patch Antenna for Satellite Communication  [PDF]
M.T. Islam,R. Azim,N. Misran
Information Technology Journal , 2010,
Abstract: The design of a dual linearly polarized patch antenna for Ku-band is presented in this study. The square patch with triangular slots is adopted in this design. The antenna has a compact structure and the total size is 15x15 mm2. The result shows that the impedance bandwidth (VSWR≤2) of the proposed antenna is 6.0% (from 14.13 to 15 GHz). The antenna has achieved a stable radiation performance with a maximum gain of 6.2 dBi in the operating band. The present design provides a good isolation level between the two ports and a stable cross polarization level around -14 dB for both E- and H-planes. Details of the proposed antenna design and results are presented and discussed. The patch shows a high matching level in Ku-band and isolation elements that makes it suitable for satellite communication.
Modified Design of Microstrip Patch Antenna for WiMAX Communication System  [PDF]
Nidhi Kumari Lal,Ashutosh Kumar Singh
Computer Science , 2014, DOI: 10.9781/ijimai.2014.315
Abstract: In this paper, a new design for U-shaped microstrip patch antenna is proposed, which can be used in WiMAX communication systems. The aim of this paper is to optimize the performance of microstrip patch antenna. Nowadays, WiMAX communication applications are widely using U-shaped microstrip patch antenna and it has become very popular. Our proposed antenna design uses 4-4.5 GHZ frequency band and it is working at narrowband within this band. RT/DUROID 5880 material is used for creating the substrate of the microstrip antenna. This modified design of the microstrip patch antenna gives high performance in terms of gain and return loss.
Patch Antenna Design Analysis For Wireless Communication
International Journal of Advanced Research in Electrical, Electronics and Instrumentation Engineering , 2013,
Abstract: A simulation of sixteen (hexadeci) faced microstrip patch antenna design using slit on the edge is discussed here. This antenna is fed using probe feed model. It is simulated using IE3D electromagnetic simulator. The simulated results of the antenna achieve the radiation parameters such as scattering parameter (S-parameter), radiation pattern and voltage standing wave ratio (VSWR). In S-parameter, the S11 parameter value is reached < -10 dB for the resonant frequencies 0.9 GHz, 0.87 GHz to 0.90 GHz and VSWR value is obtained < 2 for that same frequencies. The proposed antennas will be useful for 900 MHz band in wireless communication applications.
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