RFID Receiver circuit fault finding
Component level fault diagnosis of a RFID receiver circuit for a worker safety application.
RFID Antenna Design
Design and testing of multiple UHF RFID antennas for use in the automotive industry.
Design, test and prototype supply of an LTE antenna for an indoor gaming application. The complete design process including supply of prototypes for regulatory approvals took less than two weeks.
LTE Antenna design
NFC Fault Diagnoses
Fault diagnoses of ST Microelectronics CR95HF based NFC reader, which was exhibiting exceptionally low range.
2D/3D Antenna measurements
Measurement of multiple externally designed antenna prototypes at the Radtenna 3D scanning facility. The associated report provided comparative 2D, 3D and efficiency data for each antenna as well as performance analysis and commentary.
NFC Emissions testing and Resolution
Radiated emissions testing and EMC resolution of an NPX MFRC522 based NFC reader circuit for a company in the safety industry.
Measurement and design modification of a 2.4GHz Bluetooth Low Energy antenna for a sports equipment application.
BLE Antenna Measurement and design correction
LTE Antenna design for North America
Design of LTE PCB antenna for a mobility application. The antenna had to meet the North American carrier requirements.
Bluetooth LE antenna
2.4GHz antenna design for a Bluetooth LE sports/leisure remote control application.
Sigfox Antenna
868MHz Sigfox antenna design and measurement for a wireless environmental control device.
Wi-Fi remote control
Design consultancy and antenna design for a Wi-Fi based, warehouse automated delivery remote control system.
LTE Patch Antenna Design
Design of 3 separate integrated patch antennas to provide LTE band coverage for a military defense application.
2.4 GHz wearable
Design consultancy for a European company developing Bluetooth in-ear wearable devices.
125 KHz RFID Antenna
Design consultancy and performance measurement of a 125KHz RFID antenna system for a wearable safety system.
RFID Antenna Design
433MHz RFID antenna design and measurement for a worker safety system.
LTE Dipole Antenna
Wideband LTE Dipole PCB antenna design and measurement for a mobility monitoring application.
Underground LTE Antenna
Design of LTE antenna for an underground monitoring application in the water industry.
LTE PCB Antenna design
Design of LTE PCB antenna for a vehicle load monitoring application.
The list below is not comprehensive and does not include much of the short-term antenna tuning and consultancy work which makes up much of Radtenna's day to day activities.
Please note that for reasons of client confidentiality, I am unable to give specific project details or name clients. However, should a potential new client require references, I would be happy, with the client's agreement, to provide the appropriate contact details.
Client Projects 2016 - 2023
Design of PCB based antenna for a Sigfox water metering application
Design of PCB based antenna for a Bluetooth wearable
Design of a 2.4 GHz embedded PCB antenna for a BLE medical wearable device. The Client is located in the USA.
Design of PCB based BLE antenna for a medical startup
Pre-conformance EMC testing and consultancy for a data logger product.
Pre-Conformance EMC testing and consultancy
Near perfect 3D radiation pattern of the Sigfox planar sleeve dipole.
Tuning and 3D pattern measurement of a Bluetooth chip antenna
Tuning and 3D pattern measurement of a USB dongle based Bluetooth chip antenna for a UK cyber security company.
Design, prototyping and testing of an 868MHz Planar Sleeve dipole antenna for water metering application. The complete design process, from initial contact to delivery of final prototypes took less than three weeks.
Design of Bluetooth antenna for a European based wearables company.
On site antenna performance measurement
Measurement of multiple commercially available antennas, both at the Radtenna 3D scanning facility and on-site at the client’s end user location. The associate report provided comparative 2D, 3D and efficiency data for each antenna and deployment recommendations for various use case scenarios.
Analysis of multiple commercial GSM and LTE antennas.
Design of two LTE antennas
Analysis and redesign of NFC coil antenna
433 MHz antenna for medical application
Design of two suspended plate LTE antennas for a UK based mobile communications infrastructure/service provider. The client had very specific requirements for radiation pattern shape and physical geometry.
Analysis and redesign of an NFC reader antenna matching circuit for a security company. The new design increased the usable reader range by over 50%.
Design of ultra-small 433 MHz antenna for an in-vivo medical application.
Design of LTE PCB planar sleeve dipole antenna for a UK based antenna sales and distribution company. The Radtenna design replaced an existing product extending low frequency performance and increasing the overall LTE band efficiency.
Design of planar LTE antenna
Design of LoRa Antenna
Design and testing of LoRa 868Mz PCB antenna for remote control lighting application.
Design of PCB based antenna for a 2.4GHz remote control system
Working from my home office/lab, design of a 2.4 GHz embedded PCB antenna for a Bluetooth wearable device. The design process from initial contact to prototype design submission was completed within a week.
Testing of multiple Bluetooth products to parts of ETSI 300 328
Located at the client’s own test facility, the test, analyses and report generation for multiple products to specific compliance aspects relating to the latest version of ETSI EN 300 328 (V2.1.1).
Design of PCB based antenna for a Bluetooth wearable
Design of a 2.4 GHz embedded PCB antenna for a remote-control lighting system. The new design replaced an existing poorly performing solution.
Design of PCB based Quadband antenna for a GSM/GPS tracking system.
Working from my home office/lab for Galleos Ltd, the design of a quadband embedded PCB antenna to cover the GSM 850/900 and DCS1800/PCS1900 frequency bands. The new design replaced an existing off-board solution as part of a product cost reduction exercise.
Design of multiple concept antennas
Design of multiple concept antenna solutions for a Bluetooth Wearable. A variety of concepts were requested by the client as the final form-factor and product case material had not yet been selected. The client was keen to achieve the right balance of ergonomics and performance, so this early stage concept investigation helped them make informed design trade-offs based on actual performance data.
Bluetooth LE antenna for medical startup
Bluetooth antenna for multifunction sensor
169 MHz antenna performance analysis
Consultation for a US based start-up, proceeding the development of a Bluetooth LE antenna for a medical sensor application.
Design of 2.4GHz Bluetooth antenna for multifunction sensor for a Europe based wearables developer.
Performance analysis of two separate 169MHz antenna designs for a water metering application.
Design and test of dual band antenna for multimedia wearable
Design and testing of LDS antenna for a Bluetooth wearable
Consultancy and testing of RF circuitry for an IoT device for the water industry.
Working primarily at the client’s offices and acting as an independent consultant, I was responsible for the specification, recommendation and test of a third party multiband GPRS antenna solution for their water supply network monitoring system.
Working closely with the client at their offices and at my own office/lab, I was responsible for the design and test of an LDS (Laser Direct Structuring) Bluetooth antenna for a wearable device. The new design replaced their existing PCB antenna solution and yielded a significant improvement in product performance.
Working for the same client, I was responsible for the design and test of a similar LDS antenna solution for a second wearable device, which is also now in production.
Working primarily at the client's offices. Design of a dual band PCB antenna for operation in the 2.4GHz and 5.2GHz Wi-Fi frequency bands for a wearable device.