IEEE Antennas Research Articles

IEEE Antennas and Wireless Propagation Letters

IEEE Antennas and Wireless Propagation Letters

2019 IEEE Radio and Antenna Days of the Indian Ocean

2019 IEEE Radio and Antenna Days of the Indian Ocean

The AP-S and Its Development: My Point of View [Meeting Reports

Reports on the development of the IEEE Antennas and Propagation Society (AP-S) and discusses its future outlook and development.

IEEE Antennas and Wireless Propagation Letters

IEEE Antennas and Wireless Propagation Letters

Comments on “Optimization of Sparse Frequency Diverse Array With Time-Invariant Spatial-Focusing Beampattern”

Presents comments on the paper, “Optimization of Sparse Frequency Diverse Array With Time-Invariant Spatial-Focusing Beampattern,” (Yange, Y.-Q., et al), IEEE Antennas and Wireless Propagation Letters, vol. 17, no. 2, pp. 351–354, Feb. 2018.

IEEE Antennas and Wireless Propagation Letters

IEEE Antennas and Wireless Propagation Letters

A Spherical Aberration Corrective Lens for Centimeter Through Submillimeter Wavelength Antennas

We present the design of a dielectric lens to correct the spherical aberration in spherical reflector antennas for use at centimeter through submillimeter wavelengths. A set of near-field measurements at a frequency of 100 GHz of a 30 cm diameter spherical antenna with 30 cm radius of curvature confirm improvement in illumination efficiency from 20.2% for the feed at the paraxial focus of the spherical primary to 42.4% with the feed position optimized as described by [M. Alonso-DelPino, P. Goldsmith, C. Elmaleh, T. Reck, and G. Chattopadhyay, “Efficiency optimization of spherical reflectors by feed position adjustments,” IEEE Antennas and Wireless Propagation Letters, vol. 16, pp. 2865–2868, 2017] to 53.1% with the present TPX corrective lens. Further improvement should be possible by antireflection treatment of the lens surfaces, and by using both lens surfaces to optimize the amplitude in addition to the phase distribution of the antenna illumination. This technique offers advantages for antenna systems used for communication and for a variety of remote sensing applications.

Cavity-Backed Archimedean Spiral Antenna with Conical Perturbations for 3U CubeSat Applications [Education Corner

This article reports the development of a CubeSat antenna for the 2017 IEEE Antennas and Propagation Society (AP-S) Student Design Contest by an interdisciplinary team of undergraduate and graduate students from the Electrical and Aerospace Engineering Departments of the University of Alabama. First, as satellites require lineof-sight (LOS) communication with the ground station, a link scenario was created to determine the points of visibility in the CubeSat's orbit. Then, link and power budgets were calculated to determine the specifications for an antenna that is suitable for 3U Cube-Sat applications in the X band (8 GHz) and Ku band (11.2 GHz). To meet the requirements, a cavity-backed Archimedean spiral antenna (ASA) with quadruple conical perturbations (QCPs) was designed and fabricated.

Call for Nominations for the 2019 IEEE Antenna and Propagation Society Awards

Call for Nominations for the 2019 IEEE Antenna and Propagation Society Awards

Reply to “Comments on ‘Optimization of Sparse Frequency Diverse Array With Time-Invariant Spatial-Focusing Beampattern’”

Presents a reply to comments on the paper, “Optimization of sparse frequency diverse array with time-invariant spatialfocusing beampattern,” (Yang, Y.-Q., et al), IEEE Antennas Wireless Propag. Lett., vol. 17, no. 2, pp. 351–354, Feb. 2018.

IEEE Antennas and Wireless Propagation Letters

IEEE Antennas and Wireless Propagation Letters

IEEE Antennas and Wireless Propagation Letters

IEEE Antennas and Wireless Propagation Letters

Multi-standard, multi-band planar multiple input multiple output antenna with diversity effects for wireless applications

Wireless generations require the miniaturized radiating elements for the portable devices. This research article presents a miniaturized multiple input multiple output (MIMO) antenna for IEEE 802.11 (WLAN) and IEEE 802.16 (WiMAX) wireless standards. The multi-standard, multi-band MIMO with 1 × 2 diversity arms is impedance matched with 50 Ω microstrip line on FR-4 dielectric substrate having dielectric constant 4.4 and 1.524 mm thickness. The simple low profile design covers16.46% (2.23-2.64 GHz) and 12.37% (3.26-3.70 GHz) microwave frequency bands, with voltage standing wave ratio (VSWR) ≤ 2 achieves more than 12.5 dB of isolation between radiating ports. The proposed MIMO with inverted L shaped slot exhibits more than 73% efficiency, and more than 4 dBi gain at resonant frequencies. The presented MIMO is designed on FR-4 dielectric substrate of size 45.1 × 90.2 mm2. The compact size of the radiating element is 6.7 × 6.7 mm2. The effect of radiations on the body has been evaluated using specific absorption rate (SAR) and found to be in safety limit.

IEEE Antennas and Wireless Propagation Letters

IEEE Antennas and Wireless Propagation Letters

IEEE Antennas and Wireless Propagation Letters

IEEE Antennas and Wireless Propagation Letters

IEEE Antennas and Wireless Propagation Letters

IEEE Antennas and Wireless Propagation Letters

IEEE Antennas and Wireless Propagation Letters

IEEE Antennas and Wireless Propagation Letters

IEEE Antennas and Wireless Propagation Letters

IEEE Antennas and Wireless Propagation Letters

The 2017 IEEE Asia-Pacific Microwave Conference [Conference Report

The 2017 IEEE Asia-Pacific Microwave Conference (APMC2017) was held 13-16 November 2017 at the Renaissance Hotel, Kuala Lumpur, Malaysia. The conference was sponsored by the IEEE Microwave Theory and Techniques Society (MTT-S), organized by the Malaysian IEEE Antennas and Propagation Society (AP-S)/MTT-S/IEEE Electromagnetic Compatibility Society Joint Chapter, and technically cosponsored by the European Microwave Association and the AP-S.

IEEE Antennas and Wireless Propagation Letters

IEEE Antennas and Wireless Propagation Letters