# IEEE Transactions on Antennas and Propagation

## Filter Results

Displaying Results 1 - 25 of 61

Publication Year: 2010, Page(s):C1 - 625
| PDF (47 KB)
• ### IEEE Transactions on Antennas and Propagation publication information

Publication Year: 2010, Page(s): C2
| PDF (43 KB)
• ### RF MEMS Integrated Frequency Reconfigurable Annular Slot Antenna

Publication Year: 2010, Page(s):626 - 632
Cited by:  Papers (59)
| | PDF (1442 KB) | HTML

A new kind of double- and single-arm cantilever type DC-contact RF MEMS actuators has been monolithically integrated with an antenna architecture to develop a frequency reconfigurable antenna. The design, microfabrication, and characterization of this ??reconfigurable antenna (RA) annular slot?? which was built on a microwave laminate TMM10i ( ??r = 9.8, tan ?? = 0.002), are presented in th... View full abstract»

• ### A Shallow Varactor-Tuned Cavity-Backed Slot Antenna With a 1.9:1 Tuning Range

Publication Year: 2010, Page(s):633 - 639
Cited by:  Papers (19)
| | PDF (702 KB) | HTML

A shallow (0.025 wavelengths) microstrip-fed cavity-backed-slot (CBS) antenna has been demonstrated that tunes from 1 to 1.9 GHz with better than -20 dB reflection coefficient using a single varactor diode (0.45-2.5 pF). This is possible because the slot and the cavity combine to form a single resonance, and therefore, do not need to be tuned independently. The cavity is 72 ?? 72 ?? 3.18 mm3<... View full abstract»

• ### Dielectric Loaded Substrate Integrated Waveguide (SIW) ${H}$-Plane Horn Antennas

Publication Year: 2010, Page(s):640 - 647
Cited by:  Papers (88)  |  Patents (2)
| | PDF (1761 KB) | HTML

A dielectric loaded substrate integrated waveguide (SIW) H-plane sectoral horn antenna has been proposed in this paper. The horn and the loaded dielectric are integrated by using the same single substrate resulting in easy fabrication and low cost. Two antennas with rectangular and elliptical shaped loaded dielectrics were designed and fabricated. These antennas have high gain and narrow beamwidth... View full abstract»

• ### Planar Annular Ring Antennas With Multilayer Self-Biased NiCo-Ferrite Films Loading

Publication Year: 2010, Page(s):648 - 655
Cited by:  Papers (38)  |  Patents (2)
| | PDF (1131 KB) | HTML

With their high relative permeability, magneto-dielectric materials show great potential in antenna miniaturization. This paper presents an annular ring antenna with self-biased magnetic films loading in the gigahertz frequency range. The annular ring antenna was realized by cascading a microstrip ring and a tuning stub. Self-biased NiCo-ferrite films were adopted to load an annular ring antenna o... View full abstract»

• ### Compact Loaded PIFA for Multifrequency Applications

Publication Year: 2010, Page(s):656 - 664
Cited by:  Papers (21)
| | PDF (1834 KB) | HTML

A new multifrequency microstrip patch antenna is presented. The antenna can be considered a PIFA since it has a metallic wall on one of its sides. The different bands of operation are independent of each other, and different radiation patterns for each band can be achieved if desired. In addition, a circuital model is introduced to explain the operation of the antenna. This model presents some sim... View full abstract»

• ### A Comparison of a Wide-Slot and a Stacked Patch Antenna for the Purpose of Breast Cancer Detection

Publication Year: 2010, Page(s):665 - 674
Cited by:  Papers (66)
| | PDF (2578 KB) | HTML

A wide-slot UWB antenna is presented for intended use in the detection scheme being developed at the University of Bristol, based on the principle of synthetically focused UWB radar using a fully populated static array. The antenna's measured and simulated, input and radiation characteristics are presented and compared to an existing, stacked patch antenna that has been designed for the same purpo... View full abstract»

• ### A Holographic Antenna Approach for Surface Wave Control in Microstrip Antenna Applications

Publication Year: 2010, Page(s):675 - 682
Cited by:  Papers (20)
| | PDF (977 KB) | HTML

A holographic antenna inspired structure is used to control the surface wave (SW) excited by a microstrip patch antenna. The hologram is designed to support a periodic leaky-wave which radiates at broadside and enhances the radiation of the patch while suppressing the horizontal lobe. In this design, the holographic approach is adapted for patch antenna applications where the SW wavelengths are co... View full abstract»

• ### Receiving Polarization Agile Active Antenna Based on Injection Locked Harmonic Self Oscillating Mixers

Publication Year: 2010, Page(s):683 - 689
Cited by:  Papers (3)
| | PDF (1082 KB) | HTML

A polarization agile active antenna with phase shifter elements based on injection locked third harmonic self oscillating mixers is presented. This phase shifting topology provides the double functionality of continuous range phase shifter and downconverter. The phase shift value introduced by each circuit can be easily tuned through a DC voltage within a theoretical continuous range of 450¿¿ . Th... View full abstract»

• ### Singly and Dual Polarized Convoluted Frequency Selective Structures

Publication Year: 2010, Page(s):690 - 696
Cited by:  Papers (38)
| | PDF (762 KB) | HTML

Convoluting the elements of frequency selective surfaces produces resonating structures with very small unit cell dimensions. This feature is attractive when the FSS is to be used at low frequencies, mounted on a curved surface, or when placed in the proximity of compact radiators. The characteristics of single and dual polarized convoluted FSS are analyzed and measured. The development of novel c... View full abstract»

• ### A Linear Rectangular Dielectric Resonator Antenna Array Fed by Dielectric Image Guide With Low Cross Polarization

Publication Year: 2010, Page(s):697 - 705
Cited by:  Papers (28)
| | PDF (2145 KB) | HTML

Design of a linear array of rectangular dielectric resonator antennas (DRAs) fed by dielectric image guide (DIG) is presented. Coupling between the DIG and the DRAs is predicted using the effective dielectric constant method. In order to achieve a specific power distribution, the power coupled to each DRA is controlled by changing the spacing between the DRAs and the DIG. Cross polarization reduct... View full abstract»

• ### Beamforming Lens Antenna on a High Resistivity Silicon Wafer for 60 GHz WPAN

Publication Year: 2010, Page(s):706 - 713
Cited by:  Papers (29)  |  Patents (1)
| | PDF (1508 KB) | HTML

Wafer-scale beamforming lenses for future IEEE802.15.3c 60 GHz WPAN applications are presented. An on-wafer fabrication is of particular interest because a beamforming lens can be fabricated with sub-circuits in a single process. It means that the beamforming lens system would be compact, reliable, and cost-effective. The Rotman lens and the Rotman lens with antenna arrays were fabricated on a hig... View full abstract»

• ### High Permittivity Dielectric Rod Waveguide as an Antenna Array Element for Millimeter Waves

Publication Year: 2010, Page(s):714 - 719
Cited by:  Papers (22)
| | PDF (1336 KB) | HTML

Dielectric rod waveguide antennas of rectangular cross section have a number of advantages over conventional waveguide and horn antennas as an antenna array element. Dielectric rod waveguide antennas have relatively low cost, low losses, a broadband input match and a high packing potential. Additionally the radiation pattern of such antennas is almost frequency independent. In this paper the suita... View full abstract»

• ### Linear Sparse Array Synthesis With Minimum Number of Sensors

Publication Year: 2010, Page(s):720 - 726
Cited by:  Papers (19)
| | PDF (749 KB) | HTML

The number of sensors employed in an array affects the array performance, computational load, and cost. Consequently, the minimization of the number of sensors is of great importance in practice. However, relatively fewer research works have been reported on the later. In this paper, a novel optimization method is proposed to address this issue. In the proposed method, the improved genetic algorit... View full abstract»

• ### Alternating Adaptive Projections in Antenna Synthesis

Publication Year: 2010, Page(s):727 - 737
Cited by:  Papers (11)
| | PDF (1293 KB) | HTML

The projection operator is a basic building block in the application of the alternating projections method to antenna synthesis. In general it is a non-linear operator that is repeatedly applied in the course of a single synthesis process, thus having a considerable impact on the convergence properties of the resulting algorithm. A novel approach to the computation of these projections is presente... View full abstract»

• ### An Optimum Adaptive Single-Port Microwave Beamformer Based on Array Signal Vector Estimation

Publication Year: 2010, Page(s):738 - 746
Cited by:  Papers (2)
| | PDF (740 KB) | HTML

A single-port adaptive beamforming structure based on an optimum perturbation technique is presented. The proposed perturbation technique is based on array signal vector estimation for temporally-correlated array signals. Temporal correlation is generated by jointly reducing the receiver bandwidth and increasing the weighting rate. The error signal is generated using the estimated array signal vec... View full abstract»

• ### Decoupled 2D Direction of Arrival Estimation Using Compact Uniform Circular Arrays in the Presence of Elevation-Dependent Mutual Coupling

Publication Year: 2010, Page(s):747 - 755
Cited by:  Papers (25)
| | PDF (595 KB) | HTML

Based on the rank reduction theory (RARE), a decoupled method for 2D direction of arrival (DOA) estimation in the presence of elevation-dependent mutual coupling is proposed for compact uniform circular arrays (UCAs). Using a new formulation of the beamspace array manifold in the presence of mutual coupling, the azimuth estimates are decoupled from the elevation estimates and obtained with no need... View full abstract»

• ### Ultrawideband Aperiodic Antenna Arrays Based on Optimized Raised Power Series Representations

Publication Year: 2010, Page(s):756 - 764
Cited by:  Papers (14)
| | PDF (1556 KB) | HTML

Past research has shown that application of mathematical and geometrical concepts such as fractals, aperiodic tilings, and special polynomials can provide elegant solutions to difficult antenna array design problems. For example, design issues such as beam shaping and control, sidelobe levels, bandwidth and many others have been addressed with such concepts. In this paper, mathematical constructs ... View full abstract»

• ### Original and Modified Kernels in Method-of-Moments Analyses of Resonant Circular Arrays of Cylindrical Dipoles

Publication Year: 2010, Page(s):765 - 772
Cited by:  Papers (3)
| | PDF (544 KB) | HTML

Properly dimensioned circular arrays of cylindrical dipoles are known to possess very narrow resonances. It is also known that analyzing such arrays using moment methods presents unique and particular difficulties, as application of such methods to the usual Hallen-type integral equations can yield meaningless results from which no further conclusions should be drawn. In the present paper, we appl... View full abstract»

• ### A New Fast Physical Optics for Smooth Surfaces by Means of a Numerical Theory of Diffraction

Publication Year: 2010, Page(s):773 - 789
Cited by:  Papers (27)
| | PDF (2415 KB) | HTML

A new technique to compute the physical optics (PO) integral is presented. The technique consists of a blind code that computes the different contributions (stationary phase points, end points, etc.) numerically. This technique is based on a decomposition of the surface into small triangles and a fast evaluation of each triangle by means of a deformation of the integration path in the complex plan... View full abstract»

• ### Planar Electromagnetic Bandgap Structures Based on Polar Curves and Mapping Functions

Publication Year: 2010, Page(s):790 - 797
Cited by:  Papers (7)
| | PDF (1134 KB) | HTML

A type of electromagnetic bandgap structure is described that is easily parameterized and can produce a range of square and spiral geometries. Individual electromagnetic bandgap (EBG) geometries are defined on a cell-by-cell basis in terms of their convolution factor k, which defines the extent to which the elements are interleaved and controls the coupling slot length between adjacent elements. P... View full abstract»

• ### Active Phase Conjugating Lens With Sub-Wavelength Resolution Capability

Publication Year: 2010, Page(s):798 - 808
Cited by:  Papers (22)
| | PDF (2716 KB) | HTML

Experimental results are presented for the focusing capability of an active phase conjugating lens for a single and a dipole source pair and these are compared with predictions. In addition for a single source we illustrate the ability of the lens to project a null at the lens focus instead of a peak. A scheme is also presented such that when a source or pair of sources is imaged through an identi... View full abstract»

• ### A Geometrical Optics Model of Three Dimensional Scattering From a Rough Layer With Two Rough Surfaces

Publication Year: 2010, Page(s):809 - 816
Cited by:  Papers (17)
| | PDF (1532 KB) | HTML

An asymptotic method is described for predicting the bistatic normalized radar cross section of a rough homogeneous layer made up of two rough surfaces. The model is based on iteration of the Kirchhoff approximation to calculate the fields scattered by the rough layer, and is reduced to the high-frequency limit in order to obtain numerical results rapidly. Shadowing effects, significant for large ... View full abstract»

• ### Dual-Grid Finite-Difference Frequency-Domain Method for Modeling Chiral Medium

Publication Year: 2010, Page(s):817 - 823
Cited by:  Papers (2)
| | PDF (891 KB) | HTML

A dual-grid finite-difference frequency-domain (DG-FDFD) method is introduced to solve for scattering of electromagnetic waves from bianisotropic objects. The formulations are based on a dual-grid scheme in which a traditional Yee grid and a transverse Yee grid are combined to achieve coupling of electric and magnetic fields that is imposed by the bianisotropy. Thus the underlying grid naturally s... View full abstract»

## Aims & Scope

IEEE Transactions on Antennas and Propagation includes theoretical and experimental advances in antennas.

Full Aims & Scope

## Meet Our Editors

Editor-in-Chief                                             Danilo Erricolo