Marko Sonkki
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View article: A Breast Tumor Monitoring Vest with Flexible UWB Antennas—A Proof-of-Concept Study Using Realistic Breast Phantoms
A Breast Tumor Monitoring Vest with Flexible UWB Antennas—A Proof-of-Concept Study Using Realistic Breast Phantoms Open
Breast cancers can appear and progress rapidly, necessitating more frequent monitoring outside of hospital settings to significantly reduce mortality rates. Recently, there has been considerable interest in developing techniques for portab…
View article: Dual-Band Dual-Polarized Planar Antenna for 5G Millimeter-Wave Antenna-in-Package Applications
Dual-Band Dual-Polarized Planar Antenna for 5G Millimeter-Wave Antenna-in-Package Applications Open
This article presents a dual-band, dual-polarized antenna operating from 24 up to 40 GHz at 5G new radio (NR) millimeter-wave (mm-Wave) Frequency Range 2 (FR2) bands. A novel stacking arrangement of ring patches is proposed to achieve wide…
View article: Thermoplastic Laminate and Cordierite/Indialite Glass-Ceramic Hybrid Package for 15-GHz Operated Antennas
Thermoplastic Laminate and Cordierite/Indialite Glass-Ceramic Hybrid Package for 15-GHz Operated Antennas Open
This work describes a novel antenna package, a combination of a four-element array and a lens antenna performing the gain of 13.5 dBi, the bandwidth of 1 GHz and the total efficiency of 72% at 15 GHz. The elements array antenna was design…
View article: Wearable Flexible Antenna for UWB On-Body and Implant Communications
Wearable Flexible Antenna for UWB On-Body and Implant Communications Open
This paper describes the development and evaluation of an on-body flexible antenna designed for an in-body application, as well as on-body communications at ISM and UWB frequency bands. The evaluation is performed via electromagnetic simul…
View article: Combined Sidelobe Reduction and Omnidirectional Linearization of Phased Array by Using Tapered Power Amplifier Biasing and Digital Predistortion
Combined Sidelobe Reduction and Omnidirectional Linearization of Phased Array by Using Tapered Power Amplifier Biasing and Digital Predistortion Open
Power amplifier (PA) efficiency and linearity are among the key drivers to reduce energy consumption while enabling high data rates in the fifth-generation (5G) millimeter-wave phased array transmitters. Analog per-branch phase and amplitu…
View article: Advanced Simulation Methods of Antennas and Radio Propagation for 5G and Beyond Communications Systems
Advanced Simulation Methods of Antennas and Radio Propagation for 5G and Beyond Communications Systems Open
Sonkki, M.; Antonino Daviu, E.; He, D.; Myllymäki, S. (2020). Advanced Simulation Methods of Antennas and Radio Propagation for 5G and Beyond Communications Systems. International Journal of Antennas and Propagation. 1-3. https://doi.org/1…
View article: Reflector-Backed Antenna for UWB Medical Applications with On-Body Investigations
Reflector-Backed Antenna for UWB Medical Applications with On-Body Investigations Open
A recent reflector-backed antenna model is proposed in this paper for wireless capsule endoscopy localization. The antenna is designed to operate at the lowest 802.15.6 mandatory UWB (ultrawideband) channel, i.e., 4 GHz center frequency wi…
View article: On-body Cavity-Backed Low-UWB Antenna for Capsule Localization
On-body Cavity-Backed Low-UWB Antenna for Capsule Localization Open
The paper presents a novel antenna operating at the lower UWB band (3.75–4.25 GHz), defined originally in IEEE 802.15.6 standard for Body Area Networks (BAN) applications. The proposed antenna is designed for biomedical application, wirele…
View article: Industrial Indoor Measurements from 2-6 GHz for the 3GPP-NR and QuaDRiGa Channel Model
Industrial Indoor Measurements from 2-6 GHz for the 3GPP-NR and QuaDRiGa Channel Model Open
Providing reliable low latency wireless links for advanced manufacturing and processing systems is a vision of Industry 4.0. Developing, testing and rating requires accurate models of the radio propagation channel. The current 3GPP-NR mode…
View article: Directive Low-Band UWB Antenna for In-body Medical Communications
Directive Low-Band UWB Antenna for In-body Medical Communications Open
A new antenna structure is presented in this paper. The antenna is operating at the Ultra-Wideband (UWB) band, 3.75-4.25 GHz, defined originally in Body Area Networks (BAN) part of IEEE 802.15.6 standard. The antenna size is 89 mm × 60 × 2…
View article: Comprehensive Study on the Impact of Sternotomy Wires on UWB WBAN Channel Characteristics on the Human Chest Area
Comprehensive Study on the Impact of Sternotomy Wires on UWB WBAN Channel Characteristics on the Human Chest Area Open
This paper presents a comprehensive study on the impact of the sternotomy wires on the characteristics of ultra wideband (UWB) radio propagation channel in the human chest area. The study is conducted using two simulation models: a planar …
View article: Wireless Energy Transfer Powered Wireless Sensor Node for Green IoT: Design, Implementation and Evaluation
Wireless Energy Transfer Powered Wireless Sensor Node for Green IoT: Design, Implementation and Evaluation Open
The number of IoT (Internet of Things) devices is predicted to increase dramatically in the years to come and their manufacturing and maintenance, including both commercial and ecological aspects associated with these, are gaining substant…
View article: 28 GHz Wireless Backhaul Transceiver Characterization and Radio Link Budget
28 GHz Wireless Backhaul Transceiver Characterization and Radio Link Budget Open
Millimeter wave communication is one of the main disruptive technologies in upcoming 5G mobile networks. One of the first candidate applications, which will be commercially ready by 2020, is wireless backhaul links or wireless last mile co…
View article: Dual Polarized Dual Fed Vivaldi Antenna for Cellular Base Station Operating at 1.7–2.7 GHz
Dual Polarized Dual Fed Vivaldi Antenna for Cellular Base Station Operating at 1.7–2.7 GHz Open
The paper presents a novel dual polarized dual fed Vivaldi antenna structure for 1.7–2.7 GHz cellular bands. The radiating element is designed for a base station antenna array with high antenna performance criteria. One radiating element c…
View article: Design Guidelines for the Excitation of Characteristic Modes in Slotted Planar Structures
Design Guidelines for the Excitation of Characteristic Modes in Slotted Planar Structures Open
This paper provides some design guidelines for the excitation of broadband slotted planar antennas, addressing key issues such as coupling, symmetries and multiple feeding. The theory of characteristic modes (CMs) is used to identify the c…