Compact LTE antenna for water meters
We designed the LTE antenna taking into account the battery, counter, water pipes, metal parts, housing and mounting position.
Simulations and prototype measurements in the installed state examined impedance matching, bandwidth, efficiency, radiation pattern, TRP/TIS, reception sensitivity and range.
Antenna structure, matching and ground concept were iteratively adjusted. We then took over the manufacturing data, testing concept, production, assembly and quality testing of the antenna.
LTE/Bluetooth transponder for asset tracking
We defined LTE bands, Bluetooth function, range, power consumption and size and selected chipsets, supply, sensors and RF components.
We developed circuit diagram and impedance controlled PCB layout including power supply, interfaces, RF paths and antenna matching. LTE and Bluetooth antennas were simulated in interaction with the battery and housing.
Prototypes were tested for S-parameters, efficiency, TRP/TIS, output power, reception sensitivity and range. Measurement results were incorporated into the layout, antennas and documents for sample and series production.
WLAN/GNSS in an outdoor light
We evaluated WLAN at 2.4 and 5 GHz as well as GNSS in the L-band in combination with metal housing, reflector, LED driver, power supply and covers.
Various antenna positions and integration variants were electromagnetically simulated. We looked at impedance matching, decoupling, polarization, radiation pattern, efficiency and possible shadowing.
Experimental setups and antenna measurements made it possible to compare WLAN coverage and GNSS reception. From this we derived recommendations for positioning, housing integration and RF adaptation.
Bluetooth AoA antenna array
We defined the number and geometry of the antenna elements, element spacing, phase reference, polarization and decoupling for the angle of arrival method.
Development included EM simulation, feeding, matching, RF switching and a symmetrical PCB layout with controlled impedance. The array was integrated with a Bluetooth module and evaluation electronics.
We measured S-parameters, decoupling, efficiency, phase position and radiation pattern on prototypes and optimized array geometry and RF paths based on the results.
Bluetooth transponder for positioning
We selected Bluetooth SoC, RF components, crystals and supplies and developed circuit diagram and PCB layout with controlled impedance.
The integrated antenna, the RF path and the matching network were simulated taking the housing into account and designed for range and stable wireless performance.
We manufactured and characterized prototypes based on S-parameters, output power, reception sensitivity, antenna efficiency and range and accompanied manufacturing documents and production testing.
Bluetooth AoA and UWB
Switchable 8×1 monopole and 4×1 patch arrays for direction finding; also UWB antenna arrays for angle determination.
Smart Lighting
Bluetooth, WiFi, Sigfox and Z-Wave antennas in LED lights, outdoor spotlights and connected lamps; WiFi at 2.45 GHz and Z-Wave at 868.42/908.42 MHz.
IoT and Smart Metering
Integrated 4G/LTE antennas, encapsulated Sigfox/LoRa antennas for level sensors and compact RFID antennas in measuring systems.
RFID 13.56 and 868 MHz
Coil antennas for readers and cards at 13.56 MHz, UHF RFID readers and tags at 868 MHz as well as active transponders and antennas in the metal frame of an industrial truck.
Bluetooth transponder antenna
Integrated Bluetooth 5.1 antenna for compact transponders and tracking systems.
Animal Tracking
Internal dual band GSM antenna for large animal monitoring and antenna and RF layout for a pet tracker.
Water level and tank monitoring
Encapsulated Sigfox/LoRa antennas for level measurement systems.
Smart door locks
Integrated antennas for keyless electronic locking systems.
Payment and NFC
Small coil antennas for payment cards and card readers at 13.56 MHz.
Handheld reader
Antenna systems for portable Bluetooth readers.
Time and access recording
Embedded 868 MHz RFID antennas for time and attendance and keyless entry.
Industrial vehicles
Integration of an RFID antenna into the metallic frame of a forklift.
2.45 GHz telemetry
Transponder systems and radio links for telemetric applications in the ISM band.