Single and stacked circular microstrip patch antennas backed by a circular cavity

Zavosh, F.; Aberle, J.T.

doi:10.1109/8.391152

Cited by 49 publications

(26 citation statements)

References 9 publications

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“…We constrained our edge-fed cavity backed solution to have the same laminate properties. As has been established [2], a cavity backed patch has many degrees of freedom, including the overall size of the cavity. Once again we constrained our solution to have a relatively small cavity that only extended 5 mm (0.08 λ 0 ) beyond the edges of the patch.…”

Section: Resultsmentioning

confidence: 99%

“…Although there has been much reported work on cavity backed patches (for example, [2]), the majority of this work has focused on coupling to the radiator through the back plane; whether it be by probe feeding, or aperture coupling. By edge feeding a cavity backed patch, we should be able to take advantage of the physical simplicity of the edge-fed patch single layer etching whilst utilizing the efficient cavity backed configuration.…”

Section: Configurationmentioning

confidence: 99%

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Investigation of Edge-fed Cavity Backed Patches and Arrays

Rowe

Waterhouse

2006

2006 IEEE Antennas and Propagation Society International Symposium

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Section: Resultsmentioning

confidence: 99%

Section: Configurationmentioning

confidence: 99%

Investigation of Edge-fed Cavity Backed Patches and Arrays

Rowe

Waterhouse

2006

2006 IEEE Antennas and Propagation Society International Symposium

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“…Various forms of microstrip versions of antennas have been developed so far and investigated theoretically and experimentally to yield better performances than earlier reported works such as frequency agile micostrip patch antennas (Sharma and Vishvakarma 1998), frequency scanning array antenna (Sharma and Vishvakarma 1996), solid state device integrated active microstrip antenna and stacked microstrip antennas (Bartley et al 1990, Zavosh andAberle 1995). These advancements and technologial developments in the microstrip antennas and their applications in diversi® ed areas have given rise to the need for frequency independent microstrip antenna which could be used for a band of frequencies without making any alteration to the system.…”

Section: Introductionmentioning

confidence: 96%

Frequency independent microstrip stacked antenna

Sharma¹,

Vishvakarma²

2000

International Journal of Electronics

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The advancement of technological development in the microstrip antenna and its applications in diverse areas, have given rise to the need for a frequency agile and frequency independent microstrip antenna which could be used for the same range of frequencies without altering the system. Requirements of such nature could be met by log periodic antenna. However, in the present endeavour a frequency independent microstrip stacked antenna consisting of nine elements operating in the S-band (2.000± 4.000 GHz) has been proposed. The developed antenna has been experimentally tested over an achievable band of frequencies from 3.200 to 3.920 GHz. The antenna performance has characteristics like E-plane radiation patterns. The 3 dB beamwidth, radiated power and VSWR show very similar behaviour for the di erent frequencies of operation obtainable in the S-band. The coaxial-fed microstrip stacked antenna provides an operational bandwidth of approximately 23%, i.e. 3.200 GHz to 3.920 GHz. The VSWR for the entire operational band is around 2 whereas the gain for the antenna is found to vary from 4.00 to 8.36 dB. The 3 dB beamwidth has been found to¯uctuate between 16.88 and 23.58. The designed antenna can be well suited for the practical broadband applications.

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“…Cavity backed patch is another method of improving the bandwidth [17]- [20]. However the edge fed cavity backed proximity coupled patch [2 1] has been recently proposed claiming that the bandwidth exceeds 40% and coax fed cavity backed proximity coupled patch [4] with a bandwidth of 27% has been used in conformal array.…”

Section: Introductionmentioning

confidence: 99%

Cavity backed embedded antenna on cylindrical surface for conformal applications

Mueed

Jia-dong

Mehdi

2011

2011 IEEE 14th International Multitopic Conference

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The use of planar antenna for conformal applications is of great engineering use, however antenna embedding into conformal shapes need to be carefully studied. The analysis of cavity-backed proximity coupled micros trip antenna embedded in a cylindrical surface is presented. Cavity backed antenna is used for higher bandwidth. A dielectric layer, which is integrated on the surface of the antenna, is designed to shield the patches and make the cylindrical surface continuous. Dielectric substrate Rogers RT/duroid® 5880 with Er =2.2 and metallic material Aluminum is used for the cylinder. Edge fed and coax fed configurations are compared. Based on the ease of manufacturing and testing, coax fed antenna is used for embedding for conformal application. Simulation results including S-parameters, radiation pattern and gain are provided. The parametric study including the effect of material, thickness, radius and dielectric cover is also discussed for the design. Two types of cylindrical cuts are used with radii of 2A, 51.. and 101.. and thickness of 0.508mm and 7mm. The results indicate that the bandwidth of edge-fed and coax-fed antenna exceeds 40% and 30 % respectively at X-band and the impedance of the antenna is not sensitive to the cylindrical radius, however the radiation pattern is affected if the cylinder is cut into half or reduced even further. The radiation pattern is more stable in the case of dielectric half cylinder with reduced thickness as compared to the metallic reduced cylinder with increased thickness. The effect of dielectric cover is to shift the frequency band towards lower frequencies. Higher gain is observed for metallic cylinders. Such an antenna can easily be used for platform mounted applications like VA V, Missile or satellites.

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Single and stacked circular microstrip patch antennas backed by a circular cavity

Cited by 49 publications

References 9 publications

Investigation of Edge-fed Cavity Backed Patches and Arrays

Investigation of Edge-fed Cavity Backed Patches and Arrays

Frequency independent microstrip stacked antenna

Cavity backed embedded antenna on cylindrical surface for conformal applications

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