R&S®FSW-K91AC WLAN 802.11ac measurements

Overview

Key facts

Demodulation bandwidth of 160 MHz with the R&S^®FSW (equipped with R&S^®FSW-B160 option)
Modulation formats for IEEE 802.11a/g/j/n/ac: BPSK, QPSK, 16QAM, 64QAM, 256QAM

Brief description

The R&S^®FSW-K91 application firmware covers standard-related tests as well as further evaluations for in-depth analysis in development for signals in line with the WLAN IEEE 802.11 a/b/g/j standard. The R&S^®FSW-K91n application firmware extends the functionality of R&S^®FSW-K91 to include spectrum and modulation measurements in accordance with the IEEE 802.11n standard.

Features & Benefits

Adds the capability to perform spectrum and modulation measurements on WLAN IEEE 802.11ac signals to the R&S^®FSW signal and spectrum analyzer
Maximum analysis bandwidth of 160 MHz with R&S^®FSW signal and spectrum analyzer (equipped with R&S^®FSW-B160 option)
Supports very high throughput (VHT) and 256 QAM

Specifications

Model	Frequency range
R&S^®FSW	2 Hz to 8/13.6/26.5/43.5 Ghz
R&S^®FSQ	20 Hz to 3.6/8/26.5/40 GHz
R&S^®FSG	9 kHz to 8/13 GHz
R&S^®FSV	20 Hz to 3/7/13/30 GHz
R&S^®FSL	9 kHz to 3/6/18 GHz

Key facts

Demodulation bandwidth of 160 MHz with the R&S^®FSW (equipped with R&S^®FSW-B160 option)
Modulation formats for IEEE 802.11a/g/j/n/ac: BPSK, QPSK, 16QAM, 64QAM, 256QAM
Modulation formats for IEEE 802.11b: DBPSK, DQPSK, CCK, short PLCP, long PLCP
Very low residual EVM down to -54 dB
Support of very high throughput (VHT)

Brief description

For measurements in line with the IEEE802.11ac standard, the R&S^®FSW-K91ac application firmware is needed.

features & benefits

R&S®FSW-K91 WLAN application firmware
- Expands the R&S^®FSW signal and spectrum analyzer by adding the capability to perform spectrum and modulation measurements on signals in line with the IEEE 802.11 a/b/g/j standard
- Provides complex WLAN measurements at a keystroke (automatic setting of modulation format)
- Performs measurements in the RF/IF range and in the baseband (analog and digital)
- Offers the ideal solution for a wide scope of WLAN applications
- Optimally designed for research, design, verification, and production applications
- Allows remote control of all functions via IEC/IEEE bus or LAN
R&S®FSW-K91n WLAN application firmware
- Expands the R&S^®FSW signal and spectrum analyzer by adding the capability to perform spectrum and modulation measurements on WLAN IEEE 802.11n signals
- Maximum analysis bandwidth of 40 MHz with the R&S^®FSW (equipped with R&S^®FSW-B40 option)
- Support of legacy/mixed/Greenfield mode of IEEE 802.11n signals
R&S®FSW-K91ac WLAN application firmware
- Adds the capability to perform spectrum and modulation measurements on WLAN IEEE 802.11ac signals to the R&S^®FSW signal and spectrum analyzer
- Maximum analysis bandwidth of 160 MHz with R&S^®FSW signal and spectrum analyzer (equipped with R&S^®FSW-B160 option)
- Supports very high throughput (VHT) and 256 QAM
Analyzers supporting WLAN measurements

Rohde & Schwarz offers a wide range of signal and spectrum analyzers for WLAN measurements:
- The R&S^®FSW-K91 and R&S^®FSW-K91n options provide the same user interface for a wide range of different spectrum and signal analyzers, offer optimal solutions for every application. No additional time is needed for transfer of T & M equipment from R & D to production
- Analyzers equipped with the R&S^®FSW-K91/ R&S^®FSW-K91n WLAN options are one-box solutions, which makes remote control easy. Test setups are straight-forward and space-saving.

Specifications

	R&S^®FSW	R&S^®FSQ	R&S^®FSG	R&S^®FSV	R&S^®FSL	R&S^®FMU
RF performance
Frequency range	2 Hz to 8/13.6/26.5/ 43.5 GHz	20 Hz to 3.6/8/26.5/ 40 GHz	9 kHz to 8/13 GHz	20 Hz to 3/7/13/30 GHz	9 kHz to 3/6/18 GHz	DC to 36 MHz
Resolution bandwidth	1 Hz to 10 MHz, 80 MHz (with R&S^®FSW-B8 option)	1 Hz to 50 MHz	1 Hz to 10 MHz	1 Hz to 40 MHz	1 Hz to 20 MHz	0.5 Hz to 20 MHz
Phase noise at 10 kHz offset	typ. –140 dBc (1 Hz)	typ. –133 dBc (1 Hz)	typ. –114 dBc (1 Hz)	typ. –106 dBc (1 Hz)	typ. –103 dBc (1 Hz)	typ. –143 dBc (10 MHz)
Overall measurement uncertainty	< 0.4 dB (8 GHz)	0.3 dB (f < 3.6 GHz)	0.3 dB (f < 3.6 GHz)	0.4 dB (f < 7 GHz)	0.5 dB (f < 3 GHz)	0.3 dB
DANL	typ. –159 dBm (at 2 GHz, with R&S^®FSW-B13 option, 1 Hz RBW)	–158 dBm (at 1 GHz, 1 Hz RBW)	–154 dBm	–152 dBm	–117 dBm (at 1 GHz, 300 Hz RBW), –152 dBm (at 1 GHz, 1 Hz RBW, preamplifier)	–151.5 dBm
TOI	typ. +30 dBm (f < 1 GHz)	typ. 27 dBm	typ. 21 dBm	typ. 17 dBm	typ. 15 dBm	–
I/Q Demodulation
I/Q Demodulation bandwidth	10 MHz, 160 MHz R&S^®FSW-B160 option	28 MHz, 120 MHz (R&S^®FSQ-B72 option)	28 MHz	28 MHz, 40 MHz (R&S^®FSV-B70 option)	28 MHz	72 MHz
I/Q Memory	400 Msample	16 Msample, 235 Msample, 705 Msample	4 Msample	200 Msample	512 ksample	16 Msample, optionally 235 Msample, 705 Msample
I/Q baseband inputs, analog	+	+ (R&S^®FSQ-B71)	–	–	–	+
I/Q baseband inputs, digital	+	+	+	+	–	+
LXI Class C conformant	+	+	+	+	+	+
WLAN
Residual EVM (averaged over 20 bursts, f = 2.4 GHz or 5 GHz)	–54 dB¹⁾	–46 dB¹⁾	–46 dB¹⁾	–45 dB¹⁾	–40 dB¹⁾	–
ACLR with noise correction	typ. 80 dB	typ. 80 dB	typ. 80 dB	typ. 70 dB	typ. 58 dB	typ. 69 dB
IEEE 802.11n	+	+	+	+	+	–
IEEE 802.11ac	+	+	–	–	–	–

¹⁾ Level –30 dBm up to +15 dBm, channel estimation: preamble und payload.

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