Multiband Conformal Hexagonal Slot Patch Antenna (original) (raw)

Printed Hexagonal Patch Monopole Antenna with Hexagonal Slot for Wide Band Frequency Applications

In this paper a hexagonal patch microstrip antenna with hexagonal slot behaves as a wide band monopole antenna having great return loss. It is designed for 1.1194-2.7078 GHz frequency band with wide bandwidth of 1.5884 GHz and return loss of - 73.63dB. A hexagonal patch with etched ground plane monopole antenna with hexagonal Slot is fabricated on the glass epoxy (FR4 lossy) of dielectric substrate with relative permittivity (εr) of 4.3, thickness of 1.6mm, loss tangent of 0.02 with a ground plane, fed with a 50Ω rectangular microstrip feed line. This prototype antenna having an omnidirectional radiation pattern is measured for frequency range of 0-3 GHz. The novelty of this antenna is that hexagonal patch with hexagonal slot gives it uniqueness in design and also getting a bandwidth approx 1.6 GHz with -73dB Return loss is big achievement in 0-3 GHz frequency Band itself. As the antenna is designed only in 0- 3GHz band, having all such properties in one antenna proves its novelty and uniqueness. The measured reflection coefficients are far below of -10dB.The simulated result and experimental results are analyzed and verified after comparison.

A Hexagonal Shape Microstrip Slot Antenna for Wideband and Multiband Applications

2014

Here in this paper a compact microstrip antenna having wide-slots of hexagon shape is fed by microstrip-line for wideband and multi band operations is proposed and studied. The proposed antenna resonates the 10-dB bandwidth from 0 to 6.0 GHz, and these frequency bands cover the standard IEEE 802.11b/g (2.4-2.485 GHz) and IEEE 802.11a (5.15-5.35 GHz) for WLAN applications and 2.5 GHz (2.5-2.69 GHz), 3.5 GHz (3.3-3.8 GHz) and 5 GHz (5.25-5.85 GHz) for Wi -MAX applications. Detailed design and experimental results are shown and discussed in this paper. The antenna is simulated using IE3D electromagnetic simulator. Here in this paper the improvement in multiband and wide band behavior is investigated & discussed with VSWR<2.

Wideband multi-layered cylindrical conformal slot antenna

IEICE Electronics Express, 2008

A wide band conformal wide slot antenna on circular cylindrical structure with appropriate feed matching circuit is proposed. The slot antenna is in the shape of a hexagon and is fed capacitively by small parasitic patches. These parasitic patches are fed by a microstrip line. The antenna proposed, with an overall substrate thickness of 1.2 mm has at least 62 percent bandwidth over the frequency range of 3.38-6.38 GHz. The dependence of design parameters on the bandwidth characteristics is investigated. The simulation via a Finite Difference Time domain method in cylindrical coordinates, and measured results on the return loss and the E and H plane radiation patterns of the proposed antennas are presented and shown to be in good agreement.

Guard lines conformal slotted antenna array for multiband application

International Journal of Informatics and Communication Technology (IJ-ICT), 2021

This work investigated a for a miniaturized slotted conformal antenna array for multiband application. Three guard lines are incorporated to the side of main patch and top of main patch to reduce surface current for planner surface and observe the effect of guard line due to which it resonate at three frequencies in X band and Ku band to be useful for multiband. A rectangular slot is etched at center of patches to increase the current path for wide band application. A quarter wave length feeding network is used with good agreement of impedance matching. The main lobe width and direction shows through the radiation pattern which remains stable even it is significantly curved. This structure is wrapped around a cylinder with diameter of 41.4 mm in circumferential direction. It is observed that the planner antenna array operating at 8.4 GHz, 11.2 GHz &18.2 GHz with return loss of-20 dB to-45 dB with fractional BW of 25% at 3rd frequency range and the directivity from 3.4 dBi-6.8 dBi. By doing some alteration in dimensions for the conformal antenna producing fractional BW of 20% and the directivity 5.5 to 9.1 dBi at resonating frequencies of 8.4 GHz, 11.4 GHz and 17.5 GHz. This proposed array is simulated on CST software.

Prototype of Slotted Microstrip Patch Antenna for Multiband Application

International Journal of Engineering & Technology

In this paper a slotted microstrip patch antenna has been designed that works for two frequencies 1.42GHz and 2.65GHz. Since a microstrip patch antenna works only on one resonant frequency so converting that into a multiband patch antenna would enhance the bandwidth and also utilizes the multiple frequencies of operation. This multiband slotted patch antenna is fabricated on FR4 lossy dielectric substrate whose dielectric constant is 4.3 and height is 1.6mm. The length and width of patch are taken as 51.16mm and 39.86mm respectively. we cut out the slots so that the patch antenna works at multiple frequencies. Another advantage of presented design is it reduced the size of antenna actually required for 1.42GHz frequency. Simulation and analysis of slotted patch antenna is done by CST software. Simulation and fabrication results show that the presented antenna design characteristics meet with the standard characteristics of antenna.

Slotted Microstrip Patch Antenna for Multiband Application

 Abstract-Wireless communication has been evolving since the birth of radio wave. Recently importance and necessity of satellite and radar communication became common practice around the world where demand for multiband operating and miniature dimension antennas and devices are growing faster. Microstrip patch antenna are widely used to fulfill desirable requirements due to there low profile, inexpensive and robust feature. This paper represents a design of compact slotted Microstrip patch antenna with substrate layer on the top. The design has been configured on the top FR4 substrate having dielectric constant of 4.2 with thickness of 1.6mm. The proposed scheme and probe feeding technique provides designed antenna to operate in multiband frequencies under X and Ku band spectrum. The antenna resonates at 7.4 GHz having 308 MHz bandwidth as well as 9.68 GHz, 12.04 GHz and 12.86 GHz under single bandwidth of 4.8 GHz. The antenna has return loss of -21.45 dB, -33.51 dB, -16.48 dB and -10.78 dB at operating frequencies respectively with reasonable directivity and efficiency. The design concepts of the proposed antenna are presented and simulation results are discussed.

Compact and Hexaband Rectangular Microstrip Patch Antenna for Wireless Applications

2021

A Compact Corner Split Ring with Split C Slot Rectangular Microstrip patch Antenna (CCSR-SCS) fed by a 50 Ω microstripline is discussed. A Corner split ring with C shaped slot has been etched in rectangular microstrip antenna. The slot increases the length of the surface current for the dominant mode TM10 leading to the decrease in resonance frequency. The size reduction along with proposed antenna Hexaband is obtained with the antenna and it is best suited for wireless communication. The proposed work is simulated using 3DEM of Mentorgraphics. The results show that Hexaband with compactness is achieved.

A Octa- Rectangular Slot Array based Patch Antenna for Multiband Applications

In this paper, a octa rectangular-slot array based patch antenna for multiband applications has been proposed. The operating frequency range of proposed antenna is 11-21.817 GHz in the X, Ku and K bands. This antenna designed with octa rectangular shaped slots on rectangular patch antenna. The FR4 (Flame Retardant)substrate material is used in this antenna, which has relative permittivity 3.66,relative permeability 1, loss tangent 0.0018 and thickness of 2mm.The design has been stimulated by using HFSS software. The performance of the antenna is analysed with the help of characteristics of return loss, VSWR, bandwidth, gain and directivity at each band. It gives resonance frequencies at 11.1GHz, 14.3GHz, 16.1GHz, 17.5GHz, 19.3 GHz and 20.3GHz.

Design of Multiband Microstrip Patch antenna with I-shape slot for wireless applications

2015

In this paper a new structure of multiband micro strip patch antenna is designed and analysed. The proposed micro strip patch antenna is designed with H-shaped slot. The proposed micro strip patch antenna with H-shape slot is results in dual frequency band I band at 2.42Ghz and another at 3.59Ghz. The proposed patch antenna is further modified by introducing double I shaped slots. The modified antenna results in three frequency bands I at 2.44Ghz, II at 3.54Ghz and III at 5.37Ghz. Also the radiation characteristics, such as, return loss, VSWR, input impedance, radiation patterns and the surface current densities have been introduced and discussed. The proposed and modified micro strip patch antenna is designed on FR4 substrate that having dielectric constant 4.4. of thickness 1.50mm. Design results are obtained by a HFSS (High Frequency Structure Simulator) which is used for simulating microwave passive components.