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The concept of self-mixing antenna arrays is presented and analyzed with respect to its beneficial behavior of large gain over a wide angular range. The large gain is attained by an antenna array with large element spacing, where all array…

Signal Processing · Electrical Eng. & Systems 2022-06-27 Jonas Kornprobst , Thomas J. Mittermaier , Thomas F. Eibert

Modern antenna design for communication systems revolves around two extremes: devices, where only a small region is dedicated to antenna design, and base stations, where design space is not shared with other components. Both imply different…

Signal Processing · Electrical Eng. & Systems 2022-11-16 Casimir Ehrenborg , Mats Gustafsson

Theoretically, the three-dimensional (3D) array architecture provides a higher communication degree of freedom (DoF) compared to the planar arrays, allowing for greater capacity potential in multiple-input multiple-output (MIMO) systems.…

Massive MIMO opens up attractive possibilities for next generation wireless systems with its large number of antennas offering spatial diversity and multiplexing gain. However, the fronthaul link that connects a massive MIMO Remote Radio…

Information Theory · Computer Science 2024-04-16 Aswathylakshmi P , Radha Krishna Ganti

The main focus and contribution of this paper is a novel network-MIMO TDD architecture that achieves spectral efficiencies comparable with "Massive MIMO", with one order of magnitude fewer antennas per active user per cell. The proposed…

Information Theory · Computer Science 2016-11-15 Hoon Huh , Giuseppe Caire , Haralabos C. Papadopoulos , Sean A. Ramprashad

Development of novel radiation-absorbent materials and devices for millimetre and submillimetre astronomy instruments is a research area of high interest, and with substantial engineering challenges. Alongside low-profile structure and…

Instrumentation and Methods for Astrophysics · Physics 2023-02-10 Giampaolo Pisano , Christopher Dunscombe , Peter Hargrave , Alexey Shitvov , Carole Tucker

Our paper presents the design of a unique annular ring-shaped planar monopole antenna with octal geometry intended for a broad spectrum of frequency applications. Utilizing FR4 epoxy for the substrate and copper material for the top patch,…

Systems and Control · Electrical Eng. & Systems 2024-04-16 Jai Mangal

Millimeter Wave (mmWave) band provides a large spectrum to meet the high-demand capacity by the 5th generation (5G) wireless networks. However, to fully exploit the available spectrum, obstacles such as high path loss, channel sparsity, and…

Information Theory · Computer Science 2018-07-16 Mojtaba Ahmadi Almasi , Roohollah Amiri , Hani Mehrpouyan

This paper presents a low power, low cost transceiver architecture to implement radar-on-a-chip. The transceiver comprises of a full ultra-wideband (UWB) transmitter and a full UWB band receiver. A design methodology to maximize the tuning…

Systems and Control · Electrical Eng. & Systems 2025-05-21 Alin Thomas Tharakan , Prince Philip , Gokulan T. , Sumit Kumar , Gaurab Banerjee

The paper introduces a novel dual-port dual-polarized magneto-electric dipole (MED) antenna with orthogonal Gamma and inverted-Gamma shape probes, which was fabricated by means of an additive 3D metal printing process. Electromagnetic wave…

Applied Physics · Physics 2025-06-24 Mehmet Ahad Yurtoglu , Ramez Askar

In the race towards "beyond 6G" telecommunication platforms, magnonics emerges as a promising solution due to its wide tunability within the FR3 band (7-24 GHz). So far, however, the need for an external magnetic bias field to allow the…

Near-field ultra-massive MIMO (U-MIMO) systems provide enhanced spatial resolution but present challenges for channel estimation, particularly when hybrid architectures are employed. Within this framework, dictionary-based channel…

Signal Processing · Electrical Eng. & Systems 2026-04-02 Luca Antonelli , Antonio Alberto D Amico , Luca Sanguinetti

Implantable and wearable devices require antennas that are both miniaturized and efficient, yet conventional designs are constrained by narrow bandwidth and orientation sensitivity. We report overtone ultra-wideband magnetoelectric…

The use of multiple antennas in a transmit and receive antenna array for MIMO wireless communication allows the spatial degrees of freedom in rich scattering environments to be exploited. However, for line-of-sight (LOS) MIMO channels with…

Signal Processing · Electrical Eng. & Systems 2018-09-12 Mario H. Castañeda García , Marcin Iwanow , Richard A. Stirling-Gallacher

Massive MIMO can greatly increase both spectral and transmit-energy efficiency. This is achieved by allowing the number of antennas and RF chains to grow very large. However, the challenges include high system complexity and hardware energy…

Information Theory · Computer Science 2016-11-17 Xiang Gao , Ove Edfors , Fredrik Tufvesson , Erik G. Larsson

UWB has a very large bandwidth in a WPAN network, which is best used for HD-video applications. Meanwhile, MBWA is a WMAN option optimized for wireless-IP in a fast moving vehicle. In this paper, we propose a practical engineering scenario…

Information Theory · Computer Science 2013-06-03 Mouhamed Abdulla , Yousef R. Shayan

A novel design of large bandwidth, fabrication tolerant, CMOS-compatible compact tapers (15 um) have been proposed and experimentally demonstrated in silicon-on-insulator. The proposed taper along with linear grating couplers for spot-size…

Optics · Physics 2017-11-28 Purnima Sethi , Anubhab Haldar , Shankar Selvaraja

While functional materials with both light transmitting and electromagnetic shielding are highly desirable, only very few of them meet the stringent electromagnetic interference (EMI) shielding criteria for optoelectronic systems. Here, a…

With the technological growth of broadband wireless technology like CDMA and UWB, a lots of development efforts towards wireless communication system and Imaging radar system are well justified. Efforts are also being imparted towards a…

Networking and Internet Architecture · Computer Science 2007-05-23 Rabindranath Bera , Jitendranath Bera , Sanjib Sil , Sourav Dhar , Debdatta Kandar , Dipak Mondal

The UFMC modulation is among the most considered solutions for the realization of beyond-OFDM air interfaces for future wireless networks. This paper focuses on the design and analysis of an UFMC transceiver equipped with multiple antennas…

Signal Processing · Electrical Eng. & Systems 2019-01-24 Stefano Buzzi , Carmen D'Andrea , Dejian Li , Shulan Feng