Search Results - "Brown, Anthony K."

Octagonal Ring Antenna for a Compact Dual-Polarized Aperture Array by Yongwei Zhang, Brown, Anthony K.

“…A wideband dual-polarized aperture array design is presented based on elements formed by a triangular configuration of octagonal rings. The octagonal ring…”
Get full text

Secure key distribution exploiting error rate criticality for radio frequency links by Stevens, Christopher J., Allen, Ben, Brown, Anthony K.

“…We propose a method by which two radio frequency (RF) communication terminals exchange encryption keys or other data securely. This method draws on the…”
Get full text

A Wideband Planar Aperture Array Using Interconnected Crossed Rings by Zhang, Yongwei, Brown, Anthony K.

“…A 5:1 frequency bandwidth aperture array antenna based on a new planar structure is reported. Dual polarization is implemented with high cross-polarization…”
Get full text

Modeling Methodology for Computing the Radar Cross Section and Doppler Signature of Wind Farms by Danoon, Laith R., Brown, Anthony K.

“…Detailed modeling of radar scattering from wind turbines using commercial computational electromagnetic (CEM) tools requires large computing resources and…”
Get full text

Geometry Design Optimization of Large-Scale Broadband Antenna Array Systems by El-makadema, Ahmed, Rashid, Laith, Brown, Anthony K.

“…The next generation radio telescopes such as the Square Kilometer Array (SKA) are expected to contain thousands of antenna array elements operating over a…”
Get full text

Bunny Ear Combline Antennas for Compact Wide-Band Dual-Polarized Aperture Array by Yongwei Zhang, Brown, Anthony K.

“…A bunny ear shaped combline element for dual-polarized compact aperture arrays is presented which provides relatively low noise temperature and low level cross…”
Get full text

A Hybrid Model for Radio Wave Propagation Through Frequency Selective Structures (FSS) by Ming Yang, Brown, A K

“…A novel hybrid model is presented to study the radio wave propagation through frequency selective structures (FSS) used to control propagation in an outdoor to…”
Get full text

High Resolution 3-D Angle of Arrival Determination for Indoor UWB Multipath Propagation by Yongwei Zhang, Brown, A.K., Malik, W.Q., Edwards, D.J.

“…Propagation measurements using a large array are used to study the angle of arrival (AOA) across the ultrawideband (UWB) frequency range of 3.1 to 10.6 GHz. A…”
Get full text

Comparison of FDTD Hard Source With FDTD Soft Source and Accuracy Assessment in Debye Media by Costen, F., Berenger, J.-P., Brown, A.K.

“…To radiate electromagnetic energy from a single point of a finite difference time domain (FDTD) grid, there are typically two general classes of…”
Get full text

Gym Bags and Mortarboards: Is Use of Campus Recreation Facilities Related to Student Success? by Huesman, Ronald, Brown, Anthony K, Lee, Giljae, Kellogg, John P, Radcliffe, Peter M

“…This study examined the relationship of student use of campus recreation facilities (CRFs) with retention and graduation rates at a large, public, Midwestern…”
Get full text

Improving the accuracy of a model-based approach for the near-field measurement of antenna arrays with UAVs by Gueuning, Quentin, Craeye, Christophe, Lera Acedo, Eloy de, Brown, Anthony K

“…We improve the accuracy of a technique developed in [1] for the evaluation of the embedded element patterns from near-field measurements taken with a source…”
Get full text

Plane-wave spectrum methods for the near-field characterization of very large structures using UAVs: The SKA radio telescope case by Gueuning, Quentin, Cavillot, Jean, Gregson, Stuart, Craeye, Christophe, de Lera Acedo, Eloy, Brown, Anthony K, Parini, Clive

“…The reconstruction of embedded element patterns is analyzed in physically and electrically large aperture arrays from near-field measurements taken with a…”
Get full text

A beamforming approach to the self-calibration of phased arrays by Gueuning, Quentin, Brown, Anthony K., Craey, Christophe, Acedo, Eloy de Lera

“…In this paper, we propose a beamforming method for the calibration of the direction-independent gain of the analog chains of aperture arrays. The gain…”
Get full text

Untethered near‐field drone‐based antenna measurement system for microwave frequencies using multiple reference antennas for phase and drone location recovery by Parini, Clive G., Gregson, Stuart F., Brown, Anthony K.

“…The simulation of a novel drone‐based near‐field (NF)/far‐field (FF) antenna measurement system enabling the reconstruction of Antenna Under Test (AUT) phase…”
Get full text

An FSS-Based Nonplanar Quad-Element UWB-MIMO Antenna System by Bilal, Muhammad, Saleem, Rashid, Abbasi, Hammad. H., Shafique, Muhammad Farhan, Brown, Anthony K.

“…In this letter, a low-profile, miniaturized four-element ultrawideband (UWB) antenna for four-port multiple-input- multiple-output (MIMO) configuration is…”
Get full text

The Mid-Frequency Aperture Array by Adami, Kristian Zarb, Zhang, David, Danoon, Laith Rashid, Prinsloo, David, Cao, Rui, de Villers, Dirk, Gilmore, Jacki, Faulkner, Andrew, de Lera Acedo, Eloy, Razavi-Ghods, Nima, Pienaar, Hardie, Abraham, Jens, Colin-Beltran, Edgar, Grainge, Keith, Brown, Anthony K.

“…The Mid-Frequency Aperture Array (MFAA) forms part of the second phase of the Square Kilometre Array (SKA-2) and will operate between the frequencies of 450…”
Get full text

On the geometry of the Square Kilometer Array Mid-Frequency Aperture Array by El-Makadema, Ahmed, Yongwei Zhang, Ming Yang, Brown, Anthony K.

“…This paper looks at the performance limits of reducing the total number of elements in a tightly coupled dense aperture arrays for radio astronomical…”
Get full text

Geometry Design Optimization of Large-Scale Broadband Antenna Array Systems: SPECIAL ISSUE ON INNOVATIVE PHASED ARRAY ANTENNAS BASED ON NON-REGULAR LATTICES AND OVERLAPPED SUBARRAYS by EL-MAKADEMA, Ahmed, RASHID, Laith, BROWN, Anthony K

Get full text

Near-field to far-field pattern measurements for a low-frequency FR-ORA by Farhat, Eman O., Adami, Kristian Z., Brown, Anthony K., Yongwei Zhang, Sammut, Charles V.

“…This paper presents the radiation pattern of a low-frequency FR-ORA array based on the low-cost planar surface near-field to far-field measurement system. The…”
Get full text

Aperture arrays for radio astronomy by Farhat, Eman O., Adami, Kristian Z., Yongwei Zhang, Brown, Anthony K., Sammut, Charles V., Abela, John

“…Ultra-wideband capacitively coupled phased array antennas for low and mid frequency radio astronomy are presented. Two distinct and novel broadband techniques…”
Get full text