Measuring E band microwave connections: Page 5 of 5

September 11, 2013 //By Dr. Wolfgang Wendler, Rohde & Schwarz
The growing volume of data traffic, due to the use of wireless devices, calls for high bandwidths for connecting base stations to the network. Two 5 GHz frequency bands between 71 GHz and 86 GHz are available in the E band for point-to-point connections.
amplitude are displayed in a constellation diagram, which delivers a visual impression of the modulation quality.

Summary

E band microwave connections are becoming more and more popular due to the constantly growing demand for higher data volumes to be transmitted. This range offers the highest achievable data rates of all available wireless transmission technologies. A spectrum analyzer with an external harmonic mixer is required to measure the spectrum. The R&S FSW signal and spectrum analyzer’s high intermediate frequency offers a wide image-free range. The low conversion loss of the Rohde & Schwarz harmonic mixers provides a high dynamic range, and the good matching results in high power measurement accuracy. This makes the R&S FSW together with the R&S FS-Z90 harmonic mixer a peerless solution for spectrum measurements in the E band.

References

[1] Radiofrequency Use and Management, Impacts from the World Administrative Radio Conference of 1979, WARC-79, chapter 4, overview, actions and impacts, page 77.
[2] ITU-R P.676-6, Attenuation by atmospheric gases, 2005.
[3] ETSI TS 102 524 V1.1. Technical Specification: Fixed radio systems; point-to-point equipment; radio equipment and antennas for use in point-to-point millimeter-wave applications in the fixed services (mmw FS) frequency bands 71 GHz to 76 GHz and 81 GHz to 86 GHz.

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