# IEEE Antennas and Wireless Propagation Letters

## Filter Results

Displaying Results 1 - 25 of 800
• ### A Fully Dielectric Lightweight Antenna Array Using a Multimode Interference Power Divider at W-Band

Publication Year: 2017, Page(s):3236 - 3239
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In this letter, we present a fully dielectric antenna array for the first time, including a single multimode interference power divider as feeding network. This allows a lightweight and compact antenna design in single dielectric waveguide technology since a cascading of multiple power dividers is avoided. Furthermore, the use of a single power divider instead of several cascaded ones reduces para... View full abstract»

• ### Phase-Only Pattern Synthesis for Linear Antenna Arrays

Publication Year: 2017, Page(s):3232 - 3235
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This letter addresses the problem of phase-only antenna beampattern synthesis. With the given magnitudes of the weight vector, we introduce a scaling factor to accurately represent the shape constraints on both the mainlobe and sidelobe regions. Moreover, we derive an iterative optimization method to solve the resultant optimization problem efficiently. The performance of the proposed method is de... View full abstract»

• ### Efficient Modeling of Missile RCS Magnitude Responses by Gaussian Processes

Publication Year: 2017, Page(s):3228 - 3231
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An efficient technique for modeling radar cross section magnitude responses versus frequency is presented. The technique is based on Gaussian process regression and makes it possible to significantly reduce the number of expensive computer simulations required to accurately resolve these responses. Examples of two missiles are used to evaluate the proposed technique. Average predictive normalized ... View full abstract»

• ### A Low-Mutual Coupling Dual-Band Dual-Reflectarray Antenna With the Potentiality of Arbitrary Polarizations

Publication Year: 2017, Page(s):3224 - 3227
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In this letter, a novel dual-layer dual-band reflectarray element is proposed, which consists of two different topologies: the cross-dipoles with fixed-size rings for Ku-band, and the round patches with variable-size rings for Ka-band. By optimizing the corresponding parameters, the dual-band reflectarray element can achieve not only sufficient phase variation with gentle slope, but also low mutua... View full abstract»

• ### A Novel Pattern-Reconfigurable Oscillating Active Integrated Antenna

Publication Year: 2017, Page(s):3220 - 3223
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A new topology to reconfigure the radiation pattern in feedback-type oscillating active integrated antenna (AIA) is proposed and demonstrated in this letter. The proposed active antenna consists of an array of two patch elements as a passive radiator integrated with an active device to form a feedback-type oscillating active antenna. Three states (main beam at θ = 0°, +3... View full abstract»

• ### Physical (Geometrical) Analysis of Polarization Phenomena Arising in the Diffraction by Scatterers in Relativistic Uniform Motion

Publication Year: 2017, Page(s):3216 - 3219
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The scattering of time-harmonic plane waves by a perfectly electrically conducting half-plane in relativistic uniform motion has been previously shown to give rise to polarization effects when the line of motion is along an arbitrary direction. A physical interpretation for the observation of these polarization effects is herein presented, based on an analysis of the geometric properties of the sc... View full abstract»

• ### Absorptive Frequency-Selective Transmission Structure With Square-Loop Hybrid Resonator

Publication Year: 2017, Page(s):3212 - 3215
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A novel design of an absorptive frequency-selective transmission structure (AFST) is proposed. This structure is based on the design of a frequency-dependent lossy layer with square-loop hybrid resonator (SLHR). The parallel resonance provided by the hybrid resonator is utilized to bypass the lossy path and improve the insertion loss. Meanwhile, the series resonance of the hybrid resonator is used... View full abstract»

• ### Physically Connected Stacked Patch Antenna Design With 100% Bandwidth

Publication Year: 2017, Page(s):3208 - 3211
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Typically, stacked patch antennas are parasitically coupled and provide larger bandwidth (BW) than a single patch antenna. Here, we show a stacked patch antenna design where square patches with semicircular cutouts are physically connected to each other. This arrangement provides 100% BW from 23.9 to 72.2 GHz with consistent high gain (5 dBi or more) across the entire BW. In another variati... View full abstract»

• ### Loss Analysis and Engineering of Spoof Surface Plasmons Based on Circuit Topology

Publication Year: 2017, Page(s):3204 - 3207
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We propose to systematically investigate the loss mechanism in spoof surface plasmon transmission lines (SSP-TLs) associated with surface-mounted resistors, by numerical simulation and circuit topology modeling, with the experimental validations. Distorted dispersion and loss curves introduced by the resistors are simultaneously predicted by the numerical results and interpreted by the circuit top... View full abstract»

• ### A Dual-Layer Radar Absorbing Material With Fully Embedded Square-Holes Frequency Selective Surface

Publication Year: 2017, Page(s):3200 - 3203
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A dual-layer radar absorbing material composed of a square-hole dielectric (SHD) layer and an integrated absorbing layer that contains a square-hole frequency selective surface (SHFSS) was designed and fabricated. The obtained materials exhibited two absorption peaks with their reflection loss below −10 dB in 7.74–18 GHz. The detailed simulations and impedance analysis reveale... View full abstract»

• ### Highly Integrable Paper-Based Harmonic Transponder for Low-Power and Long-Range IoT Applications

Publication Year: 2017, Page(s):3196 - 3199
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In this letter, the design and performance analysis of a harmonic planar transponder on paper, which conjugates compactness and scalability, are presented. The tag, targeted for a fundamental frequency of 1.2 GHz, is based on a frequency doubler with a single lumped component (a low-barrier Schottky diode) and a system of nested tapered annular slot antennas. Both antennas, orthogonally placed, fe... View full abstract»

• ### A Complete Tool for Analyzing Mutual Couplings in Nonuniform Arrays of Rectangular Aperture Radiators

Publication Year: 2017, Page(s):3192 - 3195
| | PDF (638 KB) | HTML

A complete tool for analyzing the mutual coupling in nonuniform (interleaved) array antennas consisting of rectangular aperture radiators is discussed. It relies on deriving the coupling admittances between arbitrarily located apertures via a two-dimensional interpolation scheme. Realistic radiators are accounted for through their scattering matrix evaluated by means of full-wave analyses. The met... View full abstract»

• ### Broadband RCS Reduction Based on Spiral-Coded Metasurface

Publication Year: 2017, Page(s):3188 - 3191
| | PDF (612 KB) | HTML

• ### Wideband Compact Circularly Polarized Sequentially Rotated Array Antenna With Sequential-Phase Feed Network

Publication Year: 2017, Page(s):3176 - 3179
| | PDF (575 KB) | HTML

This manuscript elaborates a novel technique to achieve wideband 2 × 2 sequential-phase (SP) fed circularly polarized corner-truncated patch array antenna (CPCTPAA) with sequentially rotated elements. The presented design is printed on FR4 substrate and is fed through a SP feed network. This feeding mechanism is composed of a section of 270° with four strips and a rectangular excresc... View full abstract»

• ### Design of a Dual-Band Dual-Polarization Transparent Frequency Selective Surface

Publication Year: 2017, Page(s):3172 - 3175
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A dual-band frequency selective surface (FSS) with different polarizations is proposed in this letter. The unit cell of the FSS is composed of three metallic layers and two intermediate dielectric layers. Each metallic layer has a square loop and a circular patch with a twisted slot. When the incident wave illuminates the surface, the polarizations of the transmission waves in the two bands are di... View full abstract»

• ### A Printed Fan-Shaped Meandered Dipole Antenna With Mutual-Coupled Dual Resonance

Publication Year: 2017, Page(s):3168 - 3171
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This letter presents a printed fan-shaped meandered dipole antenna with mutual-coupled dual resonance for enhancing impedance bandwidth in a compact antenna size. The proposed antenna consists of a printed dipole antenna mutually coupled to an antenna parasitic element of a different size for dual resonance and microstrip feeding. By applying a fan-shaped meander-line structure, the proposed anten... View full abstract»

• ### Improvement of Antenna Model Accuracy Using Error Matrix Optimization for an Active Synthetic Aperture Radar

Publication Year: 2017, Page(s):3163 - 3167
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In this letter, we propose a method to improve antenna model accuracy for active phased-array synthetic aperture radar (SAR) antennas. The antenna model is mathematical modeling to represent real radiated patterns of the SAR antenna. Unidentified systematic error contributions degrade the accuracy of the antenna model. Unlike previous approaches that only perform on-ground validation of antenna mo... View full abstract»

• ### A Novel Design Method of RF Lens for Long-Range Wireless Power Transmission

Publication Year: 2017, Page(s):3159 - 3162
| | PDF (419 KB) | HTML

This letter presents a novel radio frequency (RF) lens design method for long-range wireless power transmission. We theoretically evaluated the feasibility of the proposed method and fabricated the RF lens with the operating frequency of 30 GHz and the transmission distance of 4 m. Measurement results showed the transmission efficiency was significantly enhanced from 0.046% to 7.9%. View full abstract»

• ### Ultraminiaturized Metamaterial-Inspired SIW Textile Antenna for Off-Body Applications

Publication Year: 2017, Page(s):3155 - 3158
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This letter introduces a novel miniaturized cavity-backed substrate integrated waveguide textile antenna for off-body applications in the 2.45 GHz industrial, scientific, and medical radio band. The use of metamaterial-inspired slots reduces the antenna size by 80% compared to previous works, and the radiation pattern is broadside toward the normal direction. The simulated and measur... View full abstract»

• ### A Low-Cost Fluid Switch for Frequency-Reconfigurable Vivaldi Antenna

Publication Year: 2017, Page(s):3151 - 3154
| | PDF (398 KB) | HTML

A fluid switch is proposed for a frequency-agile Vivaldi antenna whose operating frequency band can be switched between two selected bands. A study of various ionized solutions of different concentrations is performed. A 2 mol KCl solution is selected as the fluid for the switch because of its relatively good properties in conductivity, relative permittivity, and loss tangent. The fluid-swi... View full abstract»

• ### A Polarization-Independent Broadband Multilayer Switchable Absorber Using Active Frequency Selective Surface

Publication Year: 2017, Page(s):3147 - 3150
| | PDF (511 KB) | HTML

In this letter, a polarization-insensitive broadband switchable absorber has been presented, which exhibits wide absorption bandwidth switching between two frequency bands (S-band in one biasing state, and C- and X-bands in other state). The structure utilizes the circuit analog absorber concept to achieve broadband absorption, whereas switchable mechanism is obtained by implementing active p-i-n ... View full abstract»

• ### Wideband Compact Slotline-to-Spoof-Surface Plasmon-Polaritons Transition for Millimeter Waves

Publication Year: 2017, Page(s):3143 - 3146
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A novel wideband transition between the slotline and the spoof surface plasmon polaritons (SSPPs) is presented in Ka-band. By applying the combination of a short section of the tapered slotline that has an inclination angle with the SSPPs and an additional trapezoid-shaped metallic ground plane, a bandwidth of 60.5% for |S11| <; -10 dB is obtained. A fabricated back-to-back prototype... View full abstract»

• ### Antipodal Vivaldi Antenna for Sum and Difference Radiation Patterns With Reduced Grating Lobes

Publication Year: 2017, Page(s):3139 - 3142
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A new design of an E-plane double-element Vivaldi antenna with sum and difference radiation patterns is presented in this letter. The antenna operates in the frequency range of 2.3-15 GHz (ratio of 6.5:1) with the highest grating lobe level of -10 dB at 15 GHz and competitive gain performance from 6.8 dBi at 2.3 GHz up to 14.7 dBi at 15 GHz. The grating lobes are reduced effectively by decreasing ... View full abstract»

## Aims & Scope

IEEE Antennas and Wireless Propagation Letters is devoted to the rapid electronic publication of short manuscripts in the technical areas of Antennas and Wireless Propagation.

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## Meet Our Editors

Editor-in-Chief
Christophe Fumeaux
School of Electrical and Electronic Engineering