# IEEE Transactions on Antennas and Propagation

## Filter Results

Displaying Results 1 - 25 of 57

Publication Year: 2011, Page(s):C1 - 3501
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• ### IEEE Transactions on Antennas and Propagation publication information

Publication Year: 2011, Page(s): C2
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• ### Pattern Equalization of Circular Patch Antennas Using Different Substrate Permittivities and Ground Plane Sizes

Publication Year: 2011, Page(s):3502 - 3511
Cited by:  Papers (8)
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A very unique phenomenon of circular patch antennas (CPA) for obtaining equal E- and H-plane co-polarization patterns, using varying substrate permittivities and ground plane sizes, is investigated in this paper. Pattern equalization is studied for the dominant and the first few higher order modes of the circular patch antenna, using different substrate permittivities (εr) for th... View full abstract»

• ### A New Triple-Band Circular Ring Patch Antenna With Monopole-Like Radiation Pattern Using a Hybrid Technique

Publication Year: 2011, Page(s):3512 - 3517
Cited by:  Papers (6)
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Investigation results of a new conical-shape radiation-pattern antenna based on a hybrid technique are presented. A circular-ring patch antenna excited with the dominant mode TM02 is integrated with a monopole antenna, offering two distinct operating bands. The coupling effect of the higher-order modes of the monopole and the circular-ring patch create a third operating broad band. Usin... View full abstract»

• ### A Wideband Circularly Polarized Conical Beam From a Two-Arm Spiral Antenna Excited in Phase

Publication Year: 2011, Page(s):3518 - 3525
Cited by:  Papers (20)
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Analysis is performed for a two-arm round spiral structure excited in phase, where the arms near the antenna center are backed by a small round disc. This spiral antenna has a frequency range where the radiation is bidirectional, having patterns symmetric with respect to the antenna plane. Subsequently, the bidirectional radiation is transformed into a unidirectional conical beam by backing the sp... View full abstract»

• ### A Low-Profile Printed Drop-Shaped Dipole Antenna for Wide-Band Wireless Applications

Publication Year: 2011, Page(s):3526 - 3535
Cited by:  Papers (36)
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A class of printed antipodal drop-shaped dipole antennas for wideband wireless communication systems is presented. A suitable shaping of the feeding lines and radiating arms is adopted to achieve an operating bandwidth larger than 10 GHz useful to meet the requirements of several wireless communication standards. A thin, low permittivity dielectric substrate is used to reduce the excitation of sur... View full abstract»

• ### The Impact of Vehicle Structural Components on Radiation Patterns of a Window Glass Embedded FM Antenna

Publication Year: 2011, Page(s):3536 - 3543
Cited by:  Papers (6)
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The relative long wavelength of FM radio signals compared to a typical vehicle length means that a window glass-embedded FM band antenna couples strongly to vehicle structural components. Numerical simulations have been conducted to identify which key structural components in a full-size SUV have an effect on the average antenna gain patterns. In particular, it was found that the rear hatch and th... View full abstract»

• ### Design, Realization and Measurements of a Miniature Antenna for Implantable Wireless Communication Systems

Publication Year: 2011, Page(s):3544 - 3555
Cited by:  Papers (65)  |  Patents (2)
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The design procedure, realization and measurements of an implantable radiator for telemetry applications are presented. First, free space analysis allows the choice of the antenna typology with reduced computation time. Subsequently the antenna, inserted in a body phantom, is designed to take into account all the necessary electronic components, power supply and bio-compatible insulation so as to ... View full abstract»

• ### Design of an Implantable Slot Dipole Conformal Flexible Antenna for Biomedical Applications

Publication Year: 2011, Page(s):3556 - 3564
Cited by:  Papers (69)
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We present a flexible folded slot dipole implantable antenna operating in the Industrial, Scientific, and Medical (ISM) band (2.4-2.4835 GHz) for biomedical applications. To make the designed antenna suitable for implantation, it is embedded in biocompatible Polydimethylsiloxane (PDMS). The antenna was tested by immersing it in a phantom liquid, imitating the electrical properties of the human mus... View full abstract»

• ### Temporary On-Skin Passive UHF RFID Transfer Tag

Publication Year: 2011, Page(s):3565 - 3571
Cited by:  Papers (37)
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A passive UHF RFID tag design is presented in the form of a transfer patch similar to a temporary tattoo that is mountable directly onto the skin surface. The transfer tag is suitable for monitoring of people over time in mission critical and secure environments. The antenna reactance is first calculated to conjugate match the measured RFID chip reactance and then full wave simulation is used to d... View full abstract»

• ### Carbon Nanotube Composites for Wideband Millimeter-Wave Antenna Applications

Publication Year: 2011, Page(s):3572 - 3578
Cited by:  Papers (31)
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In this paper, we explore using carbon nanotube (CNT) composite material for wideband millimeter-wave antenna applications. An accurate electromagnetic model of the composite antenna is developed using Microwave Studio for numerical analysis. Good agreement between computed and measured results is shown for both copper and CNT antennas, and their performance is compared. The CNT antenna shows stab... View full abstract»

• ### Creation of a Magnetic Boundary Condition in a Radiating Ground Plane to Excite Antenna Modes

Publication Year: 2011, Page(s):3579 - 3587
Cited by:  Papers (10)
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The creation of a magnetic boundary condition into the plane of symmetry in a radiating ground plane of a portable device is proposed to enhance its radiation efficiency and bandwidth. This magnetic boundary condition is achieved by exciting the antenna through symmetrical feeding. A novel antenna consisting of a symmetrical folded dipole is presented in order to exemplify how a broad bandwidth an... View full abstract»

• ### TE Surface Wave Resonances on High-Impedance Surface Based Antennas: Analysis and Modeling

Publication Year: 2011, Page(s):3588 - 3596
Cited by:  Papers (25)  |  Patents (1)
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Low-profile antennas comprising a horizontal dipole above a high-impedance surface are analyzed. The emphasis of this paper is on the additional resonances of the radiating structure caused by surface waves propagating on the high-impedance surface. It is shown that such resonances can be favorably used for broadening the bandwidth of the antenna. The phenomenon is thoroughly modeled by exploiting... View full abstract»

• ### Miniaturized Self-Oscillating Annular Ring Active Integrated Antennas

Publication Year: 2011, Page(s):3597 - 3606
Cited by:  Papers (13)
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With a direct integration of a field effect transistor (FET) into a C-shaped ring radiator, a novel miniaturized self-oscillating annular ring active integrated antenna is proposed and investigated in this paper. The direct integration approach provides a solid basis for the miniaturization while the slow-wave loading effect from the unstable transistor further enhances the reduction ratio. It mak... View full abstract»

• ### Packages With Integrated 60-GHz Aperture-Coupled Patch Antennas

Publication Year: 2011, Page(s):3607 - 3616
Cited by:  Papers (46)  |  Patents (1)
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This paper presents balanced-fed and fork-fed aperture-coupled patch antennas and 16-element arrays suitable for broadband millimeter-wave communications. The antennas are realized in a multi-layer organic package structure, to which RF integrated circuits can be integrated. To improve antenna bandwidth and radiation efficiency, an air cavity is used, resulting in a superstrate planar patch-antenn... View full abstract»

• ### 3D-Antenna-in-Package Solution for Microwave Wireless Sensor Network Nodes

Publication Year: 2011, Page(s):3617 - 3623
Cited by:  Papers (7)
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A three-dimensional packaging solution is introduced for wireless sensor network nodes at microwave frequencies. The package has a cubic geometry with radiating antennas on its surrounding faces. The cube which is called e-CUBE is designed in such a way that its radiation pattern resembles that of a simple dipole. The antenna is designed in a modular way and the final structure has a return loss b... View full abstract»

• ### High-Gain Silicon On-Chip Antenna With Artificial Dielectric Layer

Publication Year: 2011, Page(s):3624 - 3629
Cited by:  Papers (16)
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On-chip antennas are demanded to further lower the cost of wireless CMOS ICs. The low resistivity of silicon substrates is a major obstacle to fabricate high-gain on-chip antennas. We placed an artificial dielectric layer (ADL) between an antenna and Si substrate to improve the antenna gain. A half-wave dipole-antenna that has ADL was designed and fabricated using a CMOS-compatible process with on... View full abstract»

• ### A Compact Printed Filtering Antenna Using a Ground-Intruded Coupled Line Resonator

Publication Year: 2011, Page(s):3630 - 3637
Cited by:  Papers (35)
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A compact printed filtering antenna with high band-edge gain selectivity is presented. Occupying about the same substrate area as a conventional antenna, the proposed structure not only serves as a radiator but also a second-order bandpass filter, with one filter pole provided by a Γ-shaped antenna and the other by a newly proposed coupled line resonator. High band-edge selectivity is achie... View full abstract»

• ### A Circuit Model for Spherical Wheeler Cap Measurements

Publication Year: 2011, Page(s):3638 - 3645
Cited by:  Papers (8)
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The efficiency of an electrically-small antenna may be measured conveniently by placing it in a conducting Wheeler Cap. This paper presents a composite equivalent circuit that models an antenna both inside a spherical cap and also radiating into free space. The circuit is used to show how the measurements are affected by the antenna size, efficiency, and polarization (TE or TM), the cap radius, an... View full abstract»

• ### Edge-Born Waves in Connected Arrays: A Finite$\,\times\,$Infinite Analytical Representation

Publication Year: 2011, Page(s):3646 - 3657
Cited by:  Papers (9)
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Connected arrays constitute one of the most promising options for wideband phased arrays. Like most phased arrays, they are designed using infinite array theory. However, when finiteness is included, edge effects perturb their behavior. These effects are more severe when the arrays are designed to operate over very broad frequency ranges, since the mutual coupling between the elements facilitates ... View full abstract»

• ### Mismatch of Near-Field Bearing-Range Spatial Geometry in Source-Localization by a Uniform Linear Array

Publication Year: 2011, Page(s):3658 - 3667
Cited by:  Papers (8)
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Many near-field source-localization algorithms intentionally simplifies the exact spatial geometry among the emitter and the sensors, in order to speed up the signal-processing involved. For example, the Fresnel approximation is a second order Taylor-series approximation. Such intentional approximation introduces a systemic error in the algorithm's modeling of the actual objective reality from whi... View full abstract»

• ### Modified Dielectric Frequency Selective Surfaces With Enlarged Bandwidth and Angular Stability

Publication Year: 2011, Page(s):3668 - 3678
Cited by:  Papers (1)
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The analysis of a dielectric stop band filter is performed in terms of modified dielectric frequency selective surfaces (MDFSS). In fact, an MDFSS can totally reflect the power if a plane wave impinging on it excites a leaky wave, acting thereby as a stop band filter. Its relative bandwidth is about 0.5-0.7% and it can be enlarged by cascading MDFSSs. The development of such a cascade is analyzed ... View full abstract»

• ### Double Periodic Composite Right/Left Handed Transmission Line and Its Applications to Compact Leaky-Wave Antennas

Publication Year: 2011, Page(s):3679 - 3686
Cited by:  Papers (8)
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A double periodic composite right/left handed transmission line (DP-CRLH TL) is proposed and analyzed based on transmission line theory. Besides the composite right/left handed property, a new leaky-wave radiation is observed at a lower frequency with narrow bandwidth. Dispersion characteristics of the structure are obtained and the cutoff frequencies are investigated by changing the ratio of indu... View full abstract»

• ### 1D-Leaky Wave Antenna Employing Parallel-Plate Waveguide Loaded With PRS and HIS

Publication Year: 2011, Page(s):3687 - 3694
Cited by:  Papers (28)
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A new type of one-dimensional leaky-wave antenna (LWA) with independent control of the beam-pointing angle and beamwidth is presented. The antenna is based on a simple structure composed of a bulk parallel-plate waveguide (PPW) loaded with two printed circuit boards (PCBs), each one consisting of an array of printed dipoles. One PCB acts as a partially reflective surface (PRS), and the other groun... View full abstract»

• ### Transmission Line Modeling and Asymptotic Formulas for Periodic Leaky-Wave Antennas Scanning Through Broadside

Publication Year: 2011, Page(s):3695 - 3709
Cited by:  Papers (45)
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It is shown, using three specific examples-a series fed patch (SFP) array, a phase reversal (PR) array and a composite right/left-handed (CRLH) antenna-that one-dimensional periodic leaky-wave antennas scanning through broadside build a class of leaky-wave antennas sharing qualitatively similar and quantitatively distinct dispersion and radiation characteristics. Based on an equivalent transmissio... 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