IEEE Transactions on Antennas and Propagation

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Publication Year: 2018, Page(s):C1 - 5671
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• IEEE Transactions on Antennas and Propagation

Publication Year: 2018, Page(s): C2
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• On the Radiation Characteristics of Full-Loop, Half-Loop, and Quasi-Half-Loop Bond Wire Antennas

Publication Year: 2018, Page(s):5672 - 5686
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The theory, modeling, measurement, and analysis of the radiation characteristics of bond wire antennas (BWAs) is presented in this paper. We commence with rigorous formulations and derivations of analytical models for calculating the vector potential, radiated electromagnetic fields, and directivity of full-loop BWAs (FL-BWAs), considering nonconstant current distribution along the BWAs. Based on ... View full abstract»

• Wideband, Non-Foster Impedance Matching of Electrically Small Transmitting Antennas

Publication Year: 2018, Page(s):5687 - 5697
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Electrically small antennas (ESAs) can be passively matched only over very narrow bandwidths and the resulting antennas have low gains. These are the major limiting factors for ESAs used in transmit applications, especially at high-frequency (HF) and lower Very HF frequency bands. This paper discusses the challenges of transmit ESA matching circuit design and the design process of a new non-Foster... View full abstract»

• Folded Antipodal Dipole for Metal-Mountable UHF Tag Design

Publication Year: 2018, Page(s):5698 - 5705
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A compact folded dipole antenna that consists of two C-shaped arms, which are placed in the antipodal constellation, is proposed for designing a metal-mountable miniature tag antenna in the UHF band. Here, each of the dipole arms is composed of four unequal line segments for reducing the current crowding effect and for improving the tag’s performance. Two inductive shorting stubs are introduced fo... View full abstract»

• Design of a Dual-Polarized Wideband Conformal Loop Antenna for Capsule Endoscopy Systems

Publication Year: 2018, Page(s):5706 - 5715
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This paper presents a dual-polarized conformal loop antenna for capsule endoscopy systems. The antenna is designed on the capsule shell, with two orthogonal counterparts to generate dual-polarized radiation. This design exhibits broad impedance bandwidths of 271 and 247 MHz for each port, covering the entire Medical Device Radiocommunications Service band as well as the 433.05–434.79 MHz Industria... View full abstract»

• Dual-Polarized Antenna Fed by a Quasi-Planar Orthomode Transducer With Different Radiation Patterns

Publication Year: 2018, Page(s):5716 - 5726
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In this paper, a millimeter-wave (mmW) dual-polarized antenna with different radiation patterns is proposed. The antenna consists of a planar lens, a rectangular horn antenna, and a quasi-planar orthomode transducer (OMT) which provides two polarizations. The quasi-planar OMT with good isolation is based on the substrate-integrated waveguide technology, and it can be co-planar integrated with othe... View full abstract»

• Low-Dispersive Leaky-Wave Antenna Integrated in Groove Gap Waveguide Technology

Publication Year: 2018, Page(s):5727 - 5736
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In this paper, the use of a dispersive prism with a triangular shape is proposed to reduce the dispersive radiation nature of a leaky-wave antenna (LWA) in groove-gap waveguide technology. The operation of gap waveguide technology is based on the use of metallic pins that act as an artificial magnetic conductor, so the electromagnetic fields are confined and guided in the desired directions. To co... View full abstract»

• Dual Notched Band Quad-Element MIMO Antenna With Multitone Interference Suppression for IR-UWB Wireless Applications

Publication Year: 2018, Page(s):5737 - 5746
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Ultrawideband (UWB) signals are extremely power limited due to the severe power spectral density constraints obligated by the Federal Communications Committee. Therefore, the design of radiation efficient antennas for UWB signaling is a challenging step in the design and development of impulse radio UWB (IR-UWB) communication systems, especially when these signals coexist with previously standardi... View full abstract»

• Compact Broadband Dual-Polarized Filtering Dipole Antenna With High Selectivity for Base-Station Applications

Publication Year: 2018, Page(s):5747 - 5756
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This paper presents a broadband dual-polarized filtering dipole antenna for base-station application, which has a compact size of 50$\text {mm} \times 50\,\,\text {mm} \times 31.8$mm. The antenna consists of four parts: main radiator, feeding baluns, reflector, and two parasitic loops. Without using complex filtering circuits, ... View full abstract»

• The Transfer Function of a Boreholed Dipole Antenna

Publication Year: 2018, Page(s):5757 - 5763
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In this paper, a semiempirical model is presented to characterize the transfer function and scattering parameters of a vertical dipole antenna in the 164–174 MHz bandwidth. The antenna is either radiating in free space or it is inserted in an air-filled borehole in a salt mine. The model uses the signal flow graph for modeling of the antenna coupling with the environment and the effects of radio w... View full abstract»

• A Low-Profile and Wideband Lens Antenna Based on High-Refractive-Index Metasurface

Publication Year: 2018, Page(s):5764 - 5772
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This paper presents a low-profile and wideband metamaterial-lens (metalens) antenna based on high-refractive-index metasurface. A novel three-layer nonresonant metamaterial unit cell is introduced and analyzed by the full-wave simulation tool. The proposed unit cell is a stacking configuration of four H-shaped lines realized by multiple microwave laminates. It can achieve a large refractive index ... View full abstract»

• Compact and Unidirectional Resonance-Based Reflector Antenna for Wideband Electromagnetic Imaging

Publication Year: 2018, Page(s):5773 - 5782
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A unidirectional and wideband resonance-based reflector (RBR) antenna that can be used for biomedical applications, such as thorax imaging, is proposed. One of the main limitations in the design of biomedical systems, which utilize multiple densely spaced antennas, is the mutual coupling created by the radiating elements and the surface waves (SWs). The proposed RBR antenna is designed to achieve ... View full abstract»

• Analysis and Design of a Wideband Endfire Circularly Polarized Septum Antenna

Publication Year: 2018, Page(s):5783 - 5793
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A novel millimeter-wave (MMW) endfire wideband circularly polarized (CP) antenna with simple structure is reported. By introducing two symmetrical septum blades filled in the widened rectangular waveguide, the proposed antenna can obtain a 40% bandwidth for both axial ratio (AR) < 2.5 dB and$S_{11} < -15$dB. The CP operat... View full abstract»

• Parallel-Plate Luneburg Lens Antenna for Broadband Multibeam Radiation at Millimeter-Wave Frequencies With Design Optimization

Publication Year: 2018, Page(s):5794 - 5804
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This paper presents the implementation of Luneburg lens antenna based on a 2-D parallel-plate structure for broadband multibeam radiation at millimeter-wave frequencies. In particular, each beam pattern of this 2-D Luneburg lens antenna has a narrow beamwidth along the multibeam dimension, and exhibits a broad beamwidth along the other cross section, analogous to the radiation from a 1-D array of ... View full abstract»

• Synthesis of Shaped Beam Reflectarrays With Constrained Geometry by Exploiting Nonradiating Surface Currents

Publication Year: 2018, Page(s):5805 - 5817
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The design of reflectarray surface currents that satisfy both radiation and user-defined geometry constraints is addressed by means of a novel methodology that takes advantage of the nonuniqueness of electromagnetic inverse source (IS) problems. Toward this end, the reflectarray current synthesis is formulated as an IS problem, and its nonradiating current components are profitably exploited as ad... View full abstract»

• An Angle-Sensing Infrared Detector Using a Two-Element Biomimetic Antenna Array

Publication Year: 2018, Page(s):5818 - 5826
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We present a technique for designing the angle-sensing infrared detectors with subwavelength dimensions. The proposed detector is composed of a two-element long-wave infrared (LWIR) biomimetic antenna array. The detector consists of two closely spaced and strongly coupled IR antennas whose natural mutual coupling is augmented by using an external coupling network. Each antenna is connected to a mi... View full abstract»

• A Digital Multibeam Array With Wide Scanning Angle and Enhanced Beam Gain for Millimeter-Wave Massive MIMO Applications

Publication Year: 2018, Page(s):5827 - 5837
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A novel full-digital multibeam array with wide scanning angle and enhanced beam gain is proposed for millimeter-wave massive multiple-input multiple-output applications. The array consists of 16 dual exponentially tapered slot antenna (DETSA) elements. Each element is integrated with a radio frequency receiver, an intermediate frequency chain, and an analog-to-digital converter (ADC). The H-plane ... View full abstract»

• Reducing the Number of Elements in the Synthesis of a Broadband Linear Array With Multiple Simultaneous Frequency-Invariant Beam Patterns

Publication Year: 2018, Page(s):5838 - 5848
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The problem of reducing the number of elements in a broadband linear array with multiple simultaneous crossover frequency-invariant (FI) patterns is considered. Different from the single FI pattern array case, every element channel in the multiple FI pattern array is divided and followed by multiple finite-impulse-response (FIR) filters, and each of the multiple FIR filters has a set of coefficien... View full abstract»

• Sequentially Rotated Circular Antenna Array With Curved PIFA and Series Feed Network

Publication Year: 2018, Page(s):5849 - 5858
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This paper describes the design of a broadside circularly polarized uniform circular array based on curved planar inverted F-antenna elements. Circular polarization (CP) is obtained by exploiting the sequential rotation technique and implementing it with a series feed network. The proposed structure is first introduced, and some geometrical considerations are derived. Second, the array radiation b... View full abstract»

• Fast Far-Field Estimation Method by Compact Single Cut Near-Field Measurements for Electrically Long Antenna Array

Publication Year: 2018, Page(s):5859 - 5868
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This paper proposes a fast far-field estimation method of electrically long antenna in compact measurement space. The presented method estimates a far-field pattern on an orthogonal cut plane from the linear equivalent electric current and circular current distribution. The equivalent electric current data is measured in a reactive near-field region using a small loop probe. In the proposed method... View full abstract»

• Direct Deterministic Nulling Techniques for Large Random Arrays Including Mutual Coupling

Publication Year: 2018, Page(s):5869 - 5878
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Effective approaches for interference nulling in large random planar arrays are presented. Starting from the well-known subtraction technique, it is shown that the suppression is only effective when the mutual coupling is taken into account. Moreover, for practical antennas with significant cross-polarization levels, additional efforts are required to null interference in both co- and cross-patter... View full abstract»

• Contiguous Phase-Clustering in Multibeam-on-Receive Scanning Arrays

Publication Year: 2018, Page(s):5879 - 5891
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With reference to a planar phased-array architecture characterized by the two layers of control points and a linear plank arrangement, an innovative method for the analytic and optimal, in the least-square sense, synthesis of the subarray phases radiating a set of beam patterns pointing along desired angular directions is presented. While independent amplitude and phase analog excitations—one for ... View full abstract»

• Planar Array Diagnosis by Means of an Advanced Bayesian Compressive Processing

Publication Year: 2018, Page(s):5892 - 5906
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The detection of faulty radiators in planar antenna arrays is addressed in a probabilistic framework and it is solved through an innovative multitask Bayesian compressive sensing approach. More specifically, the proposed method formulates the failure detection problem at hand such that the real and imaginary parts of thesparseunknowns, which are the differential values of the exci... View full abstract»

• Dual-Band Dual-Polarized Antenna Array With Flat-Top and Sharp Cutoff Radiation Patterns for 2G/3G/LTE Cellular Bands

Publication Year: 2018, Page(s):5907 - 5917
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This paper proposes a dual-band dual-polarized planar antenna array with flat-top and sharp cutoff radiation patterns for 2G/3G/LTE base stations. The array consists of$8 \times 8$antenna elements arranged with nonuniform spacings and is assigned with optimized nonuniform excitations to achieve flat-top and sharp cutoff radiati... View full abstract»

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

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Editor-in-Chief                                             Danilo Erricolo