Thomas Emanuelsson
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View article: Gap Waveguide-Based MMIC Packaging Solutions for Compact RF Front-End Modules at 100 GHz
Gap Waveguide-Based MMIC Packaging Solutions for Compact RF Front-End Modules at 100 GHz Open
This paper presents two innovative packaging techniques for Monolithic Microwave Integrated Circuits (MMICs) designed for multilayer waveguide-based antennas operating near 100 GHz. The first technique involves a transition from a high-per…
View article: A 16 × 16 45° Slant-Polarized Gapwaveguide Phased Array With 65-dBm EIRP at 28 GHz
A 16 × 16 45° Slant-Polarized Gapwaveguide Phased Array With 65-dBm EIRP at 28 GHz Open
A high equivalent isotropic radiated power (EIRP) active phased array antenna is proposed for 5G communication systems at 28 GHz. The numerical design, the measurements of a fabricated prototype and the performance analysis are presented. …
View article: A 16×16 45-degree Slant-Polarized Gapwaveguide Phased Array with 65 dBm EIRP at 28 GHz
A 16×16 45-degree Slant-Polarized Gapwaveguide Phased Array with 65 dBm EIRP at 28 GHz Open
A high equivalent isotropic radiated power (EIRP) active phased array antenna is proposed for 5G communication systems at 28 GHz. The numerical design, the measurements of a fabricated prototype and the performance analysis are presented. …
View article: A 16×16 45-degree Slant-Polarized Gapwaveguide Phased Array with 65 dBm EIRP at 28 GHz
A 16×16 45-degree Slant-Polarized Gapwaveguide Phased Array with 65 dBm EIRP at 28 GHz Open
A high equivalent isotropic radiated power (EIRP) active phased array antenna is proposed for 5G communication systems at 28 GHz. The numerical design, the measurements of a fabricated prototype and the performance analysis are presented. …
View article: A Compact Gap-Waveguide Dual-Polarized Ka-Band Feed for 50dBi Reflector Antennas With Tracking Function
A Compact Gap-Waveguide Dual-Polarized Ka-Band Feed for 50dBi Reflector Antennas With Tracking Function Open
A dual-polarized Ka-band feed based on gap waveguide (GW) technology for an ultra-high-gain reflector antenna is presented. The feed provides SUM-beams for data transfer and DIFF-beams for tracking. The whole reflector antenna is composed …
View article: Realizing a 140 GHz Gap Waveguide–Based Array Antenna by Low-Cost Injection Molding and Micromachining
Realizing a 140 GHz Gap Waveguide–Based Array Antenna by Low-Cost Injection Molding and Micromachining Open
This paper presents a novel micromachining process to fabricate a 140 GHz planar antenna based on gap waveguide technology to be used in the next-generation backhauling links. The 140 GHz planar array antenna consists of three layers, all …
View article: 4×4 Magneto-Electric Dipole Array with Single-Layer Corporate-Feed Ridge Gap Waveguide for mmWave Applications
4×4 Magneto-Electric Dipole Array with Single-Layer Corporate-Feed Ridge Gap Waveguide for mmWave Applications Open
This paper presents simulations results of a 4×4 magneto-electric dipole (MED) array antenna fed by a single- layer corporate-feed ridge gap waveguide (RGW) for millimeter wave applications. The designed antenna model consists of two uncon…
View article: A Bandwidth-Enhanced Cavity-Backed Slot Array Antenna for mmWave Fixed-Beam Applications
A Bandwidth-Enhanced Cavity-Backed Slot Array Antenna for mmWave Fixed-Beam Applications Open
A bandwidth-enhanced 8X8 cavity-backed slot array antenna for fixed beam applications is presented. The antenna consists of four 2X2 subarrays fed by ridge gap waveguide and a modified bow-tie coupling slot in the cavity layer. The propose…
View article: Microstrip to Ridge Gap Waveguide Transition for 28 GHz Steerable Slot Array Antennas
Microstrip to Ridge Gap Waveguide Transition for 28 GHz Steerable Slot Array Antennas Open
In this paper three types of contactless vertical transitions from microstrip to double ridge waveguide are presented. The designs are compact in size and robust, with improved isolation by employing a pin structure, making them ideal for …
View article: Wideband Cavity-Backed Slot Subarray Fed by Gap Ridge Waveguide for 5G mmWave Base Station
Wideband Cavity-Backed Slot Subarray Fed by Gap Ridge Waveguide for 5G mmWave Base Station Open
This paper proposes a bandwidth-improved cavity-backed unit cell slot subarray antenna fed by a gap ridge waveguide for Line-of-Sight (LoS) 5G mmWave applications. The proposed subarray is comprised of three layers. The top layer is the an…
View article: A Directly Matched PA-Integrated $K$-Band Antenna for Efficient mm-Wave High-Power Generation
A Directly Matched PA-Integrated $K$-Band Antenna for Efficient mm-Wave High-Power Generation Open
A K-band slot antenna element with integrated GaN (Gallium nitride) power amplifier (PA) is presented. It has been optimized through a circuit-EM co-design methodology to directly match the transistor drain output to its optimal load imped…
View article: Spectrum Efficient D-band Communication Link for Real-time Multi-gigabit Wireless Transmission
Spectrum Efficient D-band Communication Link for Real-time Multi-gigabit Wireless Transmission Open
This manuscript presents results of wireless real-time data transmission at 143 GHz. The transmitter/receiver (Tx/Rx) front-end circuitry is integrated on a single monolithic microwave integrated circuits (MMICs), realized in a 250-nm indi…
View article: A Ka-Band Active Integrated Antenna for 5G Applications: Initial Design Flow
A Ka-Band Active Integrated Antenna for 5G Applications: Initial Design Flow Open
Initial technology and design decisions are presented as part of a design flow to realize an active integrated antenna (array) element for 5G applications at Ka-band. The objective is to synthesize an antenna impedance that directly matche…