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  • The challenge of testing 5G antenna performance

    Rohde & Schwarz presents the R&S®ATS1000 antenna test system, a highly accurate solution for testing 5G antennas up to mmWave frequencies in a mobile shielded chamber.

  • High-precision test chamber for automotive radar

    Test, calibrate and verify high-performance automotive radar sensors with the R&S®ATS1500C CATR antenna test system and the R&S®AREG100A automotive radar echo generator.

  • Identifying defective single elements in antenna arrays

    Fault identification in single elements of antenna arrays by scanning in near-field range and applying the near-field to far-field transformation method.

  • OTA characterization of phased array antennas and antenna in package (AIP)

    With its small footprint, the R&S®ATS1000 antenna test system is the ideal direct far-field OTA system to test phased array antennas. The system tests and optimizes the radiation characteristics of any modules using the AiP technology from 18 GHz to 87 GHz.

  • LTE and Bluetooth® in-device coexistence with WLAN

    Modern mobile phones can support cellular and noncellular wireless communications standards at the same time. This means, however, that the subsystems must operate in very close proximity to each other within a single device (in-device coexistence). The resulting high level of reciprocal leakage can at times cause considerable interference.This application note employs preliminary theoretical analysis and demonstrates how the problems of indevice coexistence can be measured.For german version please visit http://www.rohde-schwarz.de/appnote/1ma255.

  • LTE UE receiver performance measurements

    LTE user equipment (UE) receiver performance has significant impact to cellular radio network coverage and capacity. It determines the maximum data throughput across the air interface between the LTE base station (eNB, evolved node B) and the mobile network subscriber UE, thus it determines the total capacity across the air interface. Therefore, it is one of the most important measurements to verify the actual receiver performance of individual devices, and a key metric to compare different devices, in particular.This paper shall give an introduction to receiver performance measurements and discusses the measurement metrics as well as the challenges of over the air (OTA) measurements.

  • Antenna Array Testing - Conducted and Over the Air: The Way to 5G

    5G networks will need to offer more capacity and flexibility while lowering the operational expenses of the system. Two new technologies can simultaneously address both the increase in capacity and the increase in energy efficiency: Virtualization & Massive MIMO. This white paper provides an overview of test solutions addressing current and future requirements for antenna verification including both conducted and over-the-air (OTA) test methods, which result from applying Massive MIMO antenna technology.This white papers complements the "Millimeter-Wave Beamforming: Antenna Array Design Choices & Characterization" white paper (1MA276) from Rohde & Schwarz, which introduces fundamental theory behind beamforming antennas and provides calculation methods for radiation patterns, a number of simulation results as well as some real world measurement results for small linear arrays.

  • 5G NR Over-The-Air Base Station Receiver Tests

    3GPP defines the Radio Frequency (RF) conformance test methods and requirements for 5G NR Base Stations (BS) in the technical specifications TS 38.141. This application note describes all mandatory RF receiver tests (TS 38.141-2, chapter 7), according to Release 16.Furthermore, this document provides a brief introduction about the different R&S OTA antenna test solutions and how they are applicable for base station conformance testing. Rohde & Schwarz offers suitable solutions for any test case that is mentioned in this application note.

  • 5G NR Over-The-Air Base Station Transmitter Tests

    3GPP defines the Radio Frequency (RF) conformance test methods and requirements for 5G NR Base Stations (BS) in the technical specifications TS 38.141. This application note describes all mandatory radiated RF transmitter tests (TS 38.141-2, chapter 6), according to Release 16.Furthermore, this document provides a brief introduction about the different R&S OTA antenna test solutions and how they are applicable for base station conformance testing. Rohde & Schwarz offers solutions for any test case that is mentioned in this application note.

  • Qualcomm beam characterization and beam verification

    Measuring and optimizing the characteristics of individual elements within an antenna array for beamforming performance of Qualcomm 5G mmWave modems SDX50 and SDX55.

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