Antenna & RF Measurement
In mobile device development, ensuring top-notch wireless performance starts with precise antenna measurements. At Quarterwave, we know this is the foundation for meeting the rigorous quality standards of your entire wireless system. Throughout the research and development stages, we focus on optimizing performance and connectivity. Our approach involves several iterations of prototypes and setups, where every aspect is tested and refined to ensure your antennas perform flawlessly—both in the lab and in the real world. We verify that your hardware and software work in harmony, meeting all specifications and industry standards, while delivering seamless wireless connectivity. With Quarterwave, you’re not just meeting requirements—you’re building a device that exceeds expectations in every environment.
Antenna Measurements: An Essential Step in the Design Process
Stand-Alone Antenna Performance (Component)
We conduct precise measurements and simulations to analyze the antenna in isolation, optimizing key parameters like gain, efficiency, polarization, and radiation pattern. For example, by enhancing the antenna’s radiation pattern, we ensure consistent signal strength across a wide area, improving performance in applications such as IoT devices or smart home systems. This careful optimization guarantees that the antenna delivers reliable and efficient connectivity in real-world scenarios.
Integrated Antenna Performance (Component)
Once the antenna is integrated into the device, we evaluate how factors like diffraction, coupling, and interaction with other components influence its performance. For instance, minimizing interference caused by proximity to metal housing or other antennas ensures the device maintains strong, uninterrupted connectivity. This thorough assessment helps us optimize overall performance, ensuring the antenna functions reliably and efficiently within the complete system.
OTA Performance (Device)
Through over-the-air (OTA) measurements—such as Total Radiated Power (TRP), Total Isotropic Sensitivity (TIS), Effective Isotropic Radiated Power (EIRP), and Effective Isotropic Sensitivity (EIS)—we assess the device's overall radio performance. For example, by optimizing TRP, we ensure the device transmits signals effectively even in challenging environments, such as dense urban areas. These comprehensive evaluations guarantee that both transmission and reception characteristics are fine-tuned for maximum performance, ensuring reliable connectivity in real-world scenarios.
Performance in Real-World Environment (System)
We create simulations that reflect real-world usage conditions, considering factors such as multipath propagation, hand placement, body interference, and environmental influences. For example, by evaluating how the antenna performs when a user holds the device, we can pinpoint and address potential performance challenges encountered in daily use. This thorough validation process guarantees that the antenna operates reliably and maintains optimal connectivity across a variety of scenarios.
System Measurements: Your Key to High-Performance Solutions
At Quarterwave, we provide advanced system measurement services designed to optimize your wireless solutions. In addition to standard antenna measurements, our offerings include Error Vector Magnitude (EVM), Symbol Interference analysis, Adjacent Channel Power Ratio (ACPR), Bit Error Rate (BER) testing, and Modulation Accuracy assessments. For instance, when developing a new IoT device, our EVM testing can help ensure that the signal quality remains high even in challenging environments, reducing the risk of communication failures. These services empower you to enhance performance and reliability, ensuring your systems meet the highest industry standards and exceed expectations.
TX Prototype for Wireless Microphone System: Measuring Error Vector Magnitude
At Quarterwave, we have developed an advanced RF frontend for a digital wireless microphone system, revolutionizing how audio signals are transmitted. Unlike traditional analog systems that rely on analog RF signals, our digital wireless technology converts audio signals into QPSK (Quadrature Phase Shift Keying) symbols, ensuring high-quality transmission with minimal interference. This innovative approach enhances audio clarity and reliability, making it ideal for live performances, public speaking events, broadcasting, and recording studios.
ETSI mask measurement according to EN 300 422 - 1
Unintended emissions from the transmitter in the out-of-band domain refer to frequencies just beyond the operational channel, resulting from the modulation process but excluding spurious emissions. To ensure that the transmitter operates strictly within the designated channel, we evaluated the output spectrum in accordance with EN 300 422-1 guidelines and complied with the established ETSI mask limits.
Measure Smart: Affordable Alternatives for Accurate Results
High costs don’t always guarantee better measurement accuracy. While advanced applications may require high-precision vector network analyzers (VNAs) starting at around €30,000, many passive antenna parameters can be measured effectively without such expensive gear.
Today, affordable pocket VNAs are available for less than €100, offering reliable results for simpler antenna measurements. By selecting the right tools for your specific needs, you can achieve excellent accuracy without overspending. At Quarterwave, we provide cost-effective solutions that empower you to make smart choices without sacrificing quality.
To achieve the highest standards in active antenna parameter measurements—especially during Over-The-Air (OTA) testing—it’s essential to conduct assessments in an anechoic chamber. This specialized environment is crucial for validating product performance and securing final acceptance. While many OTA measurement solutions start at around €25,000, it’s important to note that all configurations require a premium communication tester, typically costing over €100,000. By investing in these essential tools, you can provide reliable, high-performance wireless solutions that comply with industry standards.
For a cost-effective alternative, consider Quarterwave’s PREOTA measurement box, designed to streamline the testing process without compromising quality.
Why Choose Quarterwave?
At Quarterwave, we combine innovative design with meticulous measurement and testing to ensure that your wireless communication systems function flawlessly in any environment. From smart farming to industrial IoT, we have the expertise and technology to solve your RF and antenna challenges.
With a focus on UWB technology, multi-band support, and compact designs, we create antennas that not only meet today’s stringent requirements but are also future-proof, providing your business with the long-term performance and reliability it needs to thrive in an increasingly connected world.
Partner with Quarterwave for advanced antenna solutions designed to elevate your technology and keep you connected to what matters most.
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