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Core competencies for RF engineering
- Link budgets, data rate, and throughput estimations
- 3D electromagnetic (EM) simulation
- Antenna design
- Antenna prototyping
- Benchtop design validation testing up to 20 GHz
- Radio selection
- Protocol testing and analysis
- RF circuit analysis
- RF circuit design
- Radio frequency PCB layout
- Antenna characterization (coming soon)
- Radiated testing up to 18 GHz (coming soon)
- FCC prescreening (coming soon)
- RF desense (coming soon)
RF engineering services at Fresh
A good RF layout can be the difference between success and failure. Our wireless engineering team has the industry experience and cross-disciplinary technical background to design and develop custom RF solutions or integrate off-the-shelf solutions, taking your product from concept to market for applications up to 18 GHz.
Our end-to-end RF engineering services include:
+ Engineering services integrated with industrial design, UI/UX design, cloud architecture, and app development team members.
+ One partner to help you design, prototype, and test your RF solution under one roof and achieve optimized performance for your integrated wireless product.
Comprehensive RF engineering lab technology
Our on-site RF benchtop testing lab features a versatile suite of measurement equipment from Rohde & Schwarz to meet a variety of RF testing needs from 2 Hz to 26.5 GHz.
Contact us to learn about our engineering services, including characterization and RF-related PCB layout review, in addition to troubleshooting services and our included protocol measurement licenses, to perform wireless engineering and create designs that perform as expected.
Example RF technologies we can help you design
Bluetooth® & BLE
900MHz (Zigbee, LoRa, and other sub Gig)
GNSS (including GPS, GLONASS, BeiDou, and Galileo)
Sub-6 5G FR1
Testing SW licenses available today:
Digital Standard IEEE 802.11ax
Bluetooth® including Enhanced Data Rate (VSG only)
Bluetooth® 5.x (VSG only)
HRP UWB for R&S®SMW200A
Don’t see what you need on the list? Contact us to learn more about additional license options.
Rapid prototyping for RF applications
The Fresh RF engineering team has invested in an LPKF ProtoMat S104 advanced mechanical milling system to provide rapid on-site prototyping of our antenna designs. This mechanical mill is capable of producing both single and double-sided prototypes.
With its 100,000 rpm spindle motor, 20-position auto-tool changer, 0.5µm resolution, and generous working area (9” x 12” x 0.3”), this mechanical mill is designed explicitly with RF applications in mind. We can manufacture a milled prototype in-house in as little as one day, significantly reducing the time from design engineering to first article testing.
Our RF benchtop testing lab
+ Extended 1200 MHz signal analysis bandwidth
+ Precision frequency reference
Coming soon: compact anechoic chamber
Fresh's RF engineers are preparing to install a compact anechoic chamber (25 feet long, 10 feet wide, and 12 feet high) to conduct on-site near-field antenna characterization from 1-18GHz to support our RF engineering consulting & RF design practice. We also plan to support informal testing for FCC Part 15/18 radiated emissions testing.
Antenna characterization provides real-world measurements to compare with the 3D simulation created in CST Studio Suite. Confirming good alignment between the physical measurements and the antenna’s simulation allows engineers to quickly iterate and modify the design in simulation without needing to create physical prototypes for every change.
Fresh RF engineers consider the application’s desired frequency range, maximum allowable power levels, quality factor, and isolation and coexistence with other antenna systems. These four factors determine the size, shape, and applicable types of the antenna and the type of material used in the antenna’s construction.
OTA Testing & Troubleshooting
Paired with our protocol testing services, we will provide specific over-the-air testing of technologies, including BLE, WiFi, UWB, and more. Using our chamber to isolate the RF system from the outside world, we can run targeted testing to check the performance of your product in a controlled environment.
Our RF design process
See our full approach to the radio frequency design, from research through test support.
Related hardware capabilities
Explore our other robotics and engineering services, which allow our team to solve challenges for your organization and others, regardless of size, industry vertical, or product category.