# IEEE Transactions on Antennas and Propagation

## Filter Results

Displaying Results 1 - 25 of 66
• ### Table of Contents

Publication Year: 2013, Page(s):C1 - 2
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• ### IEEE Transactions on Antennas and Propagation publication information

Publication Year: 2013, Page(s): C2
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• ### List of Reviewers for 2012

Publication Year: 2013, Page(s):3 - 10
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• ### Design and Analysis of a Low-Profile and Broadband Microstrip Monopolar Patch Antenna

Publication Year: 2013, Page(s):11 - 18
Cited by:  Papers (78)  |  Patents (1)
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A new microstrip monopolar patch antenna is proposed and analyzed. The antenna has a wide bandwidth and a monopole like radiation pattern. Such antenna is constructed on a circular patch antenna that is shorted concentrically with a set of conductive vias. The antenna is analyzed using a cavity model. The cavity model analysis not only distinguishes each resonating mode and gives a physical insigh... View full abstract»

• ### Hybrid Zeroth-Order Resonance Patch Antenna With Broad $E$-Plane Beamwidth

Publication Year: 2013, Page(s):19 - 25
Cited by:  Papers (11)
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In this paper, a hybrid zeroth-order resonance (ZOR) patch antenna with a broad E-plane beamwidth is presented. In order to obtain the broad beamwidth of an antenna, a TM010(λ0/2) mode and a ZOR mode are combined. By dividing the incident power to two modes, the E -plane beamwidth of a TM010 mode can simply be controlled. To generate the TM View full abstract»

• ### VHF Collar Integrated Antenna for Ground Link of GPS Based Location System

Publication Year: 2013, Page(s):26 - 32
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This paper presents the design of a low-profile collar-integrated antenna operating at 154.5 MHz for use as a ground link in a GPS-based location system for wildlife tracking. The antenna is a conformal zigzag wire antenna that can be easily integrated into the collar. The power reduction caused by lower gain is overcome by improving the return loss. Input impedance matching at 154.5 MHz, which is... View full abstract»

• ### Omnidirectional Metamaterial Antennas Based on $varepsilon$-Near-Zero Channel Matching

Publication Year: 2013, Page(s):33 - 44
Cited by:  Papers (26)
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We present an analytical model and practical design tools to realize cylindrically-symmetric compact antennas based on the anomalous transmission properties of ε -near-zero (ENZ) ultranarrow radial channels. The flexibility and exotic propagation properties in ENZ metamaterial channels are exploited here to tune and match cylindrically-symmetric antennas, without the need of complex externa... View full abstract»

• ### Planar Broadband Circularly Polarized Antenna With Square Slot for UHF RFID Reader

Publication Year: 2013, Page(s):45 - 53
Cited by:  Papers (24)
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Novel circular polarization (CP) design of planar broadband antenna with square slot for UHF RFID system is proposed and experimentally studied. By insetting the arc-shaped strip into the square slot, the proposed CP design can easily be achieved with the impedance bandwidth ( RL ≥ 10 dB) of about 142 MHz (15.3% @ 931 MHz) and the 3 dB axial-ratio (AR) bandwidth of about 166 MHz (17.7 % @ 9... View full abstract»

• ### A Novel Modified Archimedean Polygonal Spiral Antenna

Publication Year: 2013, Page(s):54 - 61
Cited by:  Papers (11)
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In this paper, we present a novel 2-18 GHz modified Archimedean polygonal spiral antenna that approximates a circular spiral in its highest frequencies and gradually transforms itself into a square spiral antenna at its lowest frequencies of operation. The design has successfully addressed the problem of high axial ratios associated with ultra-wideband (UWB) rectangular spiral antenna systems. A l... View full abstract»

• ### Integration of Slot Antennas in Commercial Photovoltaic Panels for Stand-Alone Communication Systems

Publication Year: 2013, Page(s):62 - 69
Cited by:  Papers (11)
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The integration of slot antennas in a class of commercial photovoltaic (PV) panels is addressed. The basic idea is to exploit the room available between adjacent solar cells, also taking advantage of the presence of the cover glass layer that gives a valuable miniaturization effect. As test cases, two antenna designs are presented for stand-alone communication systems operating in the GSM/UMTS (17... View full abstract»

• ### Continuously Polarization Agile Antenna by Using Liquid Crystal-Based Tunable Variable Delay Lines

Publication Year: 2013, Page(s):70 - 76
Cited by:  Papers (19)  |  Patents (3)
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In this paper, a polarization agile planar antenna is presented by using tunable liquid crystal (LC) material. The antenna includes a 2 × 2 dual-fed microstrip patch array and two separate feeding networks for each feeding of the dual-fed antenna. The polarization state of the antenna can be controlled continuously between dual linear and dual circular polarizations depending on a different... View full abstract»

• ### Dual-Band Omnidirectional Circularly Polarized Antenna

Publication Year: 2013, Page(s):77 - 83
Cited by:  Papers (18)  |  Patents (1)
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A dual-band omnidirectional circularly polarized antenna is proposed. The antenna comprises back-to-back microstrip patches fed by a coplanar waveguide. A very low frequency ratio of 1.182 has been achieved, which can be easily tuned by adjusting four lumped capacitors incorporated into the antenna. An analysis of the omnidirectional circular polarization mechanism as well the dual band operation ... View full abstract»

• ### New Wideband Printed Antennas for Medical Applications

Publication Year: 2013, Page(s):84 - 91
Cited by:  Papers (21)
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Biomedical industry is in continuous growth in the last few years. Low profile compact antennas are crucial in the development of wearable human biomedical systems. The polarization of the proposed antenna may be linear or dual polarized. Design considerations, computational results and measured results on the human body of several compact wideband microstrip antennas with high efficiency at 434 M... View full abstract»

• ### A Differential-Fed Magneto-Electric Dipole Antenna for UWB Applications

Publication Year: 2013, Page(s):92 - 99
Cited by:  Papers (51)
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A new magneto-electric dipole antenna with a unidirectional radiation pattern is proposed. A novel differential feeding structure is designed to provide an ultra-wideband impedance matching. A stable gain of 8.25±1.05 dBi is realized by introducing two slots in the magneto-electric dipole and using a rectangular box-shaped reflector, instead of a planar reflector. The antenna can achieve an... View full abstract»

• ### A Low-Profile Ultra-Wideband Modified Planar Inverted-F Antenna

Publication Year: 2013, Page(s):100 - 108
Cited by:  Papers (27)
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A miniaturized modified planar inverted-F antenna (PIFA) is presented and experimentally studied. This antenna consists of a planar rectangular monopole top-loaded with a rectangular patch attached to two rectangular plates, one shorted to the ground and the other suspended, both placed at the optimum distance on each side of the planar monopole. The fabricated antenna prototype had a measured imp... View full abstract»

• ### A Broadband Unidirectional Antenna Based on Closely Spaced Loading Method

Publication Year: 2013, Page(s):109 - 116
Cited by:  Papers (19)
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In order to achieve broadband and unidirectional radiation, a planar printed antenna based on closely spaced loading method is proposed and fabricated. This antenna consists of a printed rectangular loop with two gaps and a metallic strip. The rectangular loop has a good direction but has a drawback of narrow band. According to the closely spaced loading theory, the impedance at the upper frequenc... View full abstract»

• ### A Circularly Symmetric Antenna Design With High Polarization Purity and Low Spillover

Publication Year: 2013, Page(s):117 - 124
Cited by:  Papers (3)
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We describe the development of two circularly symmetric antennas with high polarization purity and low spill-over. Both were designed to be used in an all-sky polarization and intensity survey at 5 GHz (the C-Band All-Sky Survey, C-BASS). The survey requirements call for very low cross-polar signal levels and far-out sidelobes. Two different existing antennas, with 6.1-m and 7.6-m diameter primari... View full abstract»

• ### Design and Optimization of a Compact Wideband Hat-Fed Reflector Antenna for Satellite Communications

Publication Year: 2013, Page(s):125 - 133
Cited by:  Papers (7)
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We present a new design of the hat-fed reflector antenna for satellite communications, where a low reflection coefficient, high gain, low sidelobes and low cross-polar level are required over a wide frequency band. The hat feed has been optimized by using the Genetic Algorithm through a commercial FDTD solver, QuickWave-V2D, together with an own developed optimization code. The Gaussian vertex pla... View full abstract»

• ### Applying Band-Pass Filter Techniques to the Design of Small-Aperture Evanescent-Mode Waveguide Antennas

Publication Year: 2013, Page(s):134 - 142
Cited by:  Papers (5)
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A design methodology is presented which applies band-pass filter principles to form wideband small-aperture evanescent-mode waveguide antenna designs. This approach permits matching of the complex antenna aperture admittance of an evanescent-mode open-ended waveguide to a real impedance generator, and thereby to an SMA coaxial feeding probe. A reflection coefficient of less than -10 dB was obtaine... View full abstract»

• ### Phaseless Measurements Over Nonrectangular Planar Near-Field Systems Without Probe Corotation

Publication Year: 2013, Page(s):143 - 152
Cited by:  Papers (3)
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The need for acquiring the near-field phase with a high precision has imposed a stringent condition for measuring the antennas pattern at high frequencies in indoor facilities. The phaseless near-field techniques are introduced to overcome the necessity of operating with costly high frequency vector instruments. Many algorithms are proposed by the researchers and among them the Iterative Fourier t... View full abstract»

• ### 60-GHz LTCC Wideband Vertical Off-Center Dipole Antenna and Arrays

Publication Year: 2013, Page(s):153 - 161
Cited by:  Papers (20)
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Wideband 60-GHz vertical off-center dipole antenna and its arrays on low-temperature cofired ceramic substrate are presented in this paper. The dipole antenna is designed using the off-center-fed technology to cover all the four channels defined in 60-GHz standards from 57 to 66 GHz. A 4 × 4 planar array is optimized to achieve a maximum gain of 15.6 dBi at 60 GHz and above 10.2 dBi in the ... View full abstract»

• ### Small Director Array for Low-Profile Smart Antennas Achieving Higher Gain

Publication Year: 2013, Page(s):162 - 168
Cited by:  Papers (12)  |  Patents (1)
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A small director array (SDA) is an antenna gain enhancing section of the low-profile smart antenna which can be used as a fixed array or reconfigurable array using switched parasitic elements. Gain improvements up to +10 dBi are achieved in the SDA through a Yagi-Uda configuration using parasitic elements with a large diameter. The array height is reduced by 50% comparing with the standard Yagi-Ud... View full abstract»

• ### An Effective Deterministic Procedure for the Synthesis of Shaped Beams by Means of Uniform-Amplitude Linear Sparse Arrays

Publication Year: 2013, Page(s):169 - 175
Cited by:  Papers (22)
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A rigorous deterministic approach is proposed for the mask-constrained power pattern synthesis of shaped beams through one-dimensional sparse arrays having uniform-amplitude excitations (and variable phases). The approach includes the well known density taper procedure as a special case. The corresponding technique, which exploits an analytical formulation of the problem and convex programming rou... View full abstract»

• ### Exploiting Rotational Symmetry for the Design of Ultra-Wideband Planar Phased Array Layouts

Publication Year: 2013, Page(s):176 - 184
Cited by:  Papers (7)
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Two new phased array design techniques are introduced that utilize rotational symmetry to avoid grating lobes during scanning and over ultra-wide bandwidths. The first is an optimization method, which employs the covariance matrix adaptation evolutionary strategy to determine the best locations of elements inside a sector of a circle. The second technique uses standard periodic lattices inside the... View full abstract»

• ### Symmetry Properties of Electromagnetic Planar Arrays in Transfer Matrix Description

Publication Year: 2013, Page(s):185 - 194
Cited by:  Papers (5)
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We analyze in this paper symmetry properties of planar arrays in the long-wave approximation and for general case of oblique incidence of electromagnetic waves. We introduce the concept of the group of wave vectors for scattering problems in transfer matrix description. Using formalism of magnetic groups we define all the possible symmetries for planar arrays and show how to calculate the structur... View full abstract»

## Aims & Scope

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

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## Meet Our Editors

Editor-in-Chief                                             Danilo Erricolo