Search Results - "Gheethan, A. A."

Dual Band-Reject UWB Antenna With Sharp Rejection of Narrow and Closely-Spaced Bands by Gheethan, A. A., Anagnostou, D. E.

“…An ultrawideband (UWB) antenna that rejects extremely sharply the two narrow and closely-spaced U.S. WLAN 802.11a bands is presented. The antenna is designed…”
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Compact 2 x 2 Coupled Double Loop GPS Antenna Array Loaded With Broadside Coupled Split Ring Resonators by Gheethan, A. A., Herzig, P. A., Mumcu, G.

“…The design and nulling capability of a compact 2 × 2 dual-band coupled double loop (CDL) GPS antenna array loaded with broadside coupled split ring resonators…”
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A Coplanar Reconfigurable Folded Slot Antenna Without Bias Network for WLAN Applications by Anagnostou, D.E., Gheethan, A.A.

“…The design of a reconfigurable single folded slot antenna is shown. Metal strips are used in the slot to manipulate the ground size around the slot, which…”
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Compact 2 × 2 Coupled Double Loop GPS Antenna Array Loaded With Broadside Coupled Split Ring Resonators by GHEETHAN, Ahmad A, HERZIG, Paul A, MUMCU, Gokhan

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A Direct-Write Printed Antenna on Paper-Based Organic Substrate for Flexible Displays and WLAN Applications by Anagnostou, Dimitris E, Gheethan, Ahmad A, Amert, Anthony K, Whites, Keith W

“…This paper presents the design, fabrication and measurements of a direct-write printed low-cost and flexible inverted-F antenna on an ultra-low-cost…”
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Performance of miniature GPS arrays loaded with SRRs by Gheethan, A. A., Mumcu, G.

“…Impedance matching and nulling performances of miniature GPS arrays loaded with split ring resonators (SRRs) are presented. Specifically, a 2×1 GPS array…”
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Passive Feed Network Designs for Microfluidic Beam-Scanning Focal Plane Arrays and Their Performance Evaluation by Gheethan, Ahmad A., Dey, Abhishek, Mumcu, Gokhan

“…Microfluidic focal plane arrays (MFPAs) have been recently introduced to implement compact high-gain beam-scanning antennas without resorting to active RF…”
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A miniature, broadband, non-dispersive phase shifter based on CRLH TL unit cells by Nassar, I. T., Gheethan, A. A., Weller, T. M., Mumcu, G.

“…This paper proposes a topology to develop a miniature, wideband, well-matched, non-dispersive phase shifter with low insertion loss on the basis of composite…”
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Microfluidic Based Ka-Band Beam-Scanning Focal Plane Array by Gheethan, Ahmad A., Myeong Chan Jo, Guldiken, Rasim, Mumcu, Gokhan

“…An eight-element 1-D Ka-band focal plane array (FPA) capable of beam scanning based on microfluidic principles is presented. The FPA is placed at the back…”
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Compact 2 $\times$ 2 Coupled Double Loop GPS Antenna Array Loaded With Broadside Coupled Split Ring Resonators by Gheethan, Ahmad A., Herzig, Paul A., Mumcu, Gokhan

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Broadband and Dual-Band Coplanar Folded-Slot Antennas (CFSAs) [Antenna Designer's Notebook] by Gheethan, Ahmad A., Anagnostou, Dimitris E.

“…This paper presents a unified design methodology for dual-band and broadband coplanar folded-slot antennas (CFSAs). The design is achieved by using a coplanar…”
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Coupling reduction of coupled double loop GPS antennas using split ring resonators by Gheethan, A., Mumcu, G.

“…We utilize broadside coupled split ring resonators (BC-SRRs) for reducing the mutual coupling between two closely spaced miniature coupled double loop (CDL)…”
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Novel Pattern Reconfigurable Antenna Arrays Using Engineered Metamaterials and Microfluidic Principles by Gheethan, Ahmad A

“…This dissertation proposes novel solutions for important drawbacks of antenna arrays. One of the main contributions of the presented work is size reduction and…”
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MM-wave beam scanning focal plane arrays using microfluidic reconfiguration techniques by Gheethan, Ahmad A., Dey, Abhishek, Mumcu, Gokhan

“…Summary form only given. Microfluidic based reconfiguration techniques have been recently shown to provide superior advantages in terms of high power handling…”
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Reduced size planar Log-Periodic Dipole Arrays (LPDAs) using rectangular meander line elements by Gheethan, A.A., Anagnostou, D.E.

“…Two different designs for planar LPDAs were designed and measured. Both designs showed low return loss and high F/B ratio, accompanied by an acceptable value…”
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The design of reconfigurable planar log-periodic dipole array (LPDA) using switching elements by Gheethan, A.A., Anagnostou, D.E.

“…A reconfigurable log periodic dipole array antenna (LPDA) design is investigated. Switches and high resistive DC bias lines are utilized to achieve the…”
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A low-cost WLAN "Green" PIFA antenna on eco-friendly paper substrate by Anagnostou, D.E., Gheethan, A.A., Amert, T., Whites, K.W.

“…This work shows for the first time the practical application of paper as a substrate in real-life wireless local area network (WLAN) applications. Photographic…”
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A printed paper-based inverted F-antenna (PIFA) for WLAN applications by Gheethan, A.A., Anagnostou, D.E., Amert, A., Whites, K.W.

“…This work shows the practicality of a paper substrate in wireless local area network (WLAN) applications for the first time. This substrate was used in…”
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Broadband and Dual-Band Coplanar Folded-Slot Antennas (CFSAs) Antenna Designer's Notebook by Gheethan, Ahmad A, Anagnostou, Dimitris E

“…This paper presents a unified design methodology for dual-band and broadband coplanar folded-slot antennas (CFSAs). The design is achieved by using a coplanar…”
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