rf filters for mobile applications - datasheet · rf filters for mobile applications - datasheet...

NSTS 0417-E0321B / RF Filter Datasheet – Subject to change without notice www.narda-sts-com 1/25

RF Filters for Mobile Applications - Datasheet

Enhance your mobile measurement tasks by increasing your instrument´s dynamic range with tailored, external RF filters

With help of Narda´s compact and rugged external RF filters, users can increase their instrument´s dynamic range,

focusing on distinct frequency bands and avoiding out-of-band overmodulation. Narda´s RF filters cover numerous

frequency bands and applications. Non-listed filters may be available on request.

› Passive RF filters with high selectivity

› Compact and rugged

› Directly mountable on IDA

› Optimal combination of size, weight and performance

› Typical N-connectors for use with any other instrument

http://signals.narda-sts.com

http://www.narda-ida.com

http://signals.narda-sts.com/

http://www.narda-ida.com/



Technical Background

It is often necessary to measure weak radio signals in the presence of strong radio signals. Analysis of weak radio signals

requires high measurement sensitivity, but this requirement rapidly leads to overmodulation of modern measuring receivers

and signal analyzers when receiving strong signals at the same time.

External filters that can be attached and detached from the analyzer input allow the input sensitivity to be maintained on a

frequency band selective basis. Such filters can be inserted between the antenna cable and the basic unit of the IDA. The

filter specification will depend on the measurement required. The two screenshots below show the effects of measuring

GSM-900 up- and downlink signals without (left) and with (right) an RF bandpass filter (880 - 915 MHz): On the right the filter

decreases the power of the strong downlink signals (925 - 960 MHz) at the RF input. That avoids overdrive and

overmodulation and it facilitates that weaker uplink signals in the filter´s pass band (880 - 915 MHz) can be detected.

In addition to the brief explanations above, Narda provides numerous Application and Technical Notes on its website. In

order to take advantage of the IDA´s attenuator, to understand the effects of Overdrive and to find out when and how ex-

ternal RF filters may be applied, refer to the following literature:

Technical Note TN104 – Maximizing dynamic range by optimizing the input attenuator setting

Technical Note TN110 – Using external filters to maintain measurement sensitivity in highly dynamic measurement

environments



Definitions and Conditions

Product Overview

The Narda RF filters are designed for typical applications in mobile

measurement scenarios. Therefore they cover distinct frequency bands for

example in the telecommunications area where strong downlink signals need

to be suppressed while focusing on weak uplink signals. Depending on the

frequency specification some RF filters may be larger, others may be smaller,

some may have both N-connectors on one side, others may have them on

opposite sides.

In any case, unless noted otherwise, all filters can be mounted on the IDA with

Narda´s mounting kit (including RF cable & hook-and-loop tape). For technical

reasons some filters, band stop filters in particular, are rather large. These

filters are noted as Óversize´. They can of course be used with the IDA but

they are not mountable on the IDA according to Narda´s filter mounting

recommendation. The Óversize´ filters are recommended to be used in

combination with two 1.5 m coax cables (see more details under Cabel, Coax

Type N (f/m) 1.5m, part number 3100/90.20) and to be carried separately.

All Narda RF filters come with N-connectors (one male, one female) directly

mate with the RF cable of the filter mounting kit and with the IDA set. The

typical insertion loss of Narda´s filter selection is below 2 dB. The VSWR is

typically less than or equal to 1.5:1. The given pass band for a bandpass filter

or stop band for a band stop filter specify the nominal and typical 1 dB transition

points.

The following pages stick in detail to Narda´s RF filters. The fields ́ Description´

or Úsage´ mention the most likely application of each filter. The term ´Band

XY´ typically refers to a specific E-UTRA frequency band or a significant

portion of it. The abbreviation ÚL´ stands for Uplink, while ´DL´ stands for

Downlink. Filters which are dedicated to specific ITU regions (region 1, 2, or 3)

are called ITU-1/-2/-3. The diagrams depict Narda´s RF filter components with

typical characteristics. Production-related deviations may occur.

Conditions Unless otherwise noted, specifications apply after 30 minutes warm-

up time within the specified environmental conditions provided the

product is within the recommended calibration cycle.

Specifications with limits These describe product performance for the given parameter covered

by warranty. Specifications with limits (shown as <, ≤, >, ≥, ±, max.,

min.) apply under the given conditions for the product and are tested

during production, taking measurement uncertainty into account.

Specifications without limits These describe product performance for the given parameter covered

by warranty. Specifications without limits represent values with

negligible deviations which are ensured by design (e.g. dimensions or

resolution of a setting parameter).

Typical values (typ.) These characterize product performance for the given parameter that is not

covered by warranty. When stated as a range or as a limit (shown as <, ≤, >,

≥, ±, max., min.), they represent the performance met by approximately 80%

of the devices. Otherwise, they represent the mean value. The measurement

uncertainty is not taken into account.

Nominal values (nom.) These characterize expected product performance for the given parameter

that is not covered by warranty. Nominal values are verified during product

development but are not tested during production.

Uncertainties These characterize an interval for a given measure and estimated to have a

level of confidence of approximately 95 percent. Uncertainty is stated as the

standard uncertainty multiplied by the coverage factor k=2 based on the

normal distribution.



-4

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Frequency [MHz]

Cable, Coax Type N (f/m) 1.5m

Components

1.5 m coax cable with N-connectors (Connectors: 1x N(m), 1x N(f)) Note: The part 3100/90.20 includes one (1 pcs) 1.5m coax cable only! For applications with the Oversize filter 2 cables are needed, thus 2 pcs of the 3100/90.20 must be ordered. The IDA basic unit, the antenna handle, the Filter Mounting kit and filters are also not included and must be ordered separately.

Frequency Range 9 kHz – 8 GHz

Size RF Cable 1500 mm 59.1 inches

Part Number 3100/90.20

Example of a connected Band Stop Filter using two 1.5 m coax cables.



-1,5

-1,25

-1

-0,75

-0,5

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[d

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Frequency [MHz]

Filter Mounting Kit

Components

RF Cable with N-connectors (Connectors: 1x N(m) to IDA basic unit, 1x N(f) to filter), Hook-and-Loop-Tape, Mounting Instructions. Note: The IDA basic unit, the antenna handle and filters are not included and must be ordered separately.

Frequency Range 9 kHz – 8 GHz

Size RF Cable Hook-and-Loop Tape

500 mm 60 x 1.000 mm

19.7 inches 2.4 x 39.4 inches




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0 20 40 60 80 100 120 140 160 180 200 220 240 260 280 300 320 340 360 380 400

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Frequency [MHz]

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0 1000 2000 3000 4000 5000 6000 7000 8000

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[d

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Frequency [MHz]

Band Pass Filter 108 MHz – 144 MHz

Component Band Pass Filter

Pass Band 108 MHz – 144 MHz

Usage Aviation Radio

Size incl. N-connectors (Length x Width x Depth)

[mm] [inch]

82 x 25 x 21 3.2 x 1.0 x 0.8




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0 600 1200 1800 2400 3000 3600 4200

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Frequency [MHz]

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0

600 620 640 660 680 700 720 740 760 780 800

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[d

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Frequency [MHz]




Usage UL Bands 12, 17


[mm] [inch]

146 x 49 x 30 5.7 x 1.9 x 1.2




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-90

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0

680 700 720 740 760 780 800 820 840 860 880 900

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[d

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Frequency [MHz]

-100

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0

0 600 1200 1800 2400 3000 3600 4200

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[d

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Frequency [MHz]




Usage UL Band 13


[mm] [inch]

146 x 49 x 30 5.7 x 1.9 x 1.2




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0

650 675 700 725 750 775 800 825 850 875 900 925 950 975 1000

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[d

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Frequency [MHz]

-100

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0 600 1200 1800 2400 3000 3600 4200

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[d

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Frequency [MHz]




Usage UL Bands 5, 18, 19, 26, LTE-800


[mm] [inch]

146 x 49 x 30 5.7 x 1.9 x 1.2




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0

650 675 700 725 750 775 800 825 850 875 900 925 950 975 1000 1025 1050

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[d

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Frequency [MHz]

-100

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0 600 1200 1800 2400 3000 3600 4200

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[d

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Frequency [MHz]




Usage UL Bands 20, LTE-800


[mm] [inch]

146 x 49 x 30 5.7 x 1.9 x 1.2




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-20

-10

0

700 725 750 775 800 825 850 875 900 925 950 975 1000 1025 1050 1075 1100

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[d

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Frequency [MHz]

-100

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-80

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0

0 600 1200 1800 2400 3000 3600 4200

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[d

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Frequency [MHz]




Usage UL Band 8, GSM-900


[mm] [inch]

146 x 49 x 30 5.7 x 1.9 x 1.2




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0 1000 2000 3000 4000 5000 6000

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Frequency [MHz]

-100

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-80

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0

1600 1620 1640 1660 1680 1700 1720 1740 1760 1780 1800 1820 1840 1860 1880 1900

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[d

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Frequency [MHz]




Usage UL Bands 3, 4, 9, 10, GSM-1800, LTE-1800


[mm] [inch]

146 x 51 x 38 5.7 x 2.0 x 1.5




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0

1600 1625 1650 1675 1700 1725 1750 1775 1800 1825 1850 1875 1900

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[d

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Frequency [MHz]

-100

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0 1000 2000 3000 4000 5000 6000

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[d

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Frequency [MHz]




Usage UL Bands 4, 10, AWS, GSM-1800, LTE-1800


[mm] [inch]

146 x 51 x 38 5.7 x 2.0 x 1.5




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0 1000 2000 3000 4000 5000 6000

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Frequency [MHz]

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0

1750 1770 1790 1810 1830 1850 1870 1890 1910 1930 1950 1970 1990

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[d

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Frequency [MHz]




Usage UL Band 2, PCS-1900


[mm] [inch]

146 x 51 x 38 5.7 x 2.0 x 1.5




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1800 1820 1840 1860 1880 1900 1920 1940 1960 1980 2000

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Frequency [MHz]

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0 1500 3000 4500 6000 7500

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[d

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Frequency [MHz]




Usage DECT ITU-1, Europe, South Africa, Hong Kong


[mm] [inch]

120 x 64 x 31 4.7 x 2.5 x 1.2




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1800 1820 1840 1860 1880 1900 1920 1940 1960 1980 2000

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[d

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Frequency [MHz]

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0

0 1500 3000 4500 6000 7500

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[d

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Frequency [MHz]




Usage DECT ´Global´


[mm] [inch]

167 x 64 x 31 6.6 x 2.5 x 1.2




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1800 1820 1840 1860 1880 1900 1920 1940 1960 1980 2000

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[d

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Frequency [MHz]

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0 1500 3000 4500 6000 7500

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[d

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Frequency [MHz]




Usage DECT ITU-2 Latin America


[mm] [inch]

120 x 64 x 31 4.7 x 2.5 x 1.2




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1800 1825 1850 1875 1900 1925 1950 1975 2000 2025 2050 2075 2100

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[d

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Frequency [MHz]

-100

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0 1500 3000 4500 6000 7500

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[d

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Frequency [MHz]




Usage DECT ITU-2 North America, UPCS


[mm] [inch]

155 x 74 x 34 6.1 x 2.9 x 1.3




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0 1000 2000 3000 4000 5000 6000

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[d

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Frequency [MHz]

-100

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0

1800 1825 1850 1875 1900 1925 1950 1975 2000 2025 2050 2075 2100

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[d

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Frequency [MHz]



Pass Band 1920 MHz – 1980 Hz

Usage UL Band 1, UMTS


[mm] [inch]

146 x 51 x 38 5.7 x 2.0 x 1.5




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2200 2220 2240 2260 2280 2300 2320 2340 2360 2380 2400

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[d

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Frequency [MHz]

-100

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0

0 1500 3000 4500 6000 7500

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[d

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Frequency [MHz]




Usage UL Band 30, WCS


[mm] [inch]

146 x 31 x 38 5.7 x 1.2 x 1.5




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2350 2400 2450 2500 2550 2600 2650 2700

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[d

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Frequency [MHz]

-100

-90

-80

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-60

-50

-40

-30

-20

-10

0

0 800 1600 2400 3200 4000 4800 5600 6400 7200 8000 8800

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[d

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Frequency [MHz]




Usage UL Band 7, LTE-2600


[mm] [inch]

146 x 51 x 31 5.7 x 2.0 x 1.2




-100

-90

-80

-70

-60

-50

-40

-30

-20

-10

0

740 760 780 800 820 840 860 880

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[d

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Frequency [MHz]

-100

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0

0 200 400 600 800 1000 1200 1400 1600 1800 2000 2200 2400 2600

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[d

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Frequency [MHz]

Band Stop Filter 791 MHz – 821 MHz

Component Band Stop Filter

Stop Band 791 MHz – 821 MHz

Usage DL Band 20, LTE-800


[mm] [inch]

285 x 101 x 29 11.2 x 4.0 x 1.1 OVERSIZE – recommended to be used with 2x 1.5m coax cable (3100/90.20)




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840 860 880 900 920 940 960 980 1000 1020 1040

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[d

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Frequency [MHz]




Usage DL Band 8, GSM-900


[mm] [inch]



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0 300 600 900 1200 1500 1800 2100 2400 2700 3000

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[d

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Frequency [MHz]



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1740 1760 1780 1800 1820 1840 1860 1880 1900 1920 1940 1960

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[d

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Frequency [MHz]

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0 1000 2000 3000 4000 5000 6000

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[d

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Frequency [MHz]




Usage DL Band 3, GSM-1800, LTE-1800


[mm] [inch]





Ordering Information

Part Description Part Number Page

Cable, Coax Type N (f/m) 1.5m 1.5 m coax cable with N-connectors 3100/90.20 4

Filter Mounting Kit for IDA RF Cable, Hook-and-Loop-Tape, Mounting Instructions

3100/90.30 5

Filter, Band Pass, 108 MHz – 144 MHz Aviation Radio 3100/90.31 6

Filter, Band Pass, 699 MHz – 716 MHz UL Bands 12, 17 3100/90.32 7

Filter, Band Pass, 778 MHz – 788 MHz UL Band 13 3100/90.33 8

Filter, Band Pass, 815 MHz – 850 MHz UL Bands 5, 18, 19, 26, LTE-800 3100/90.34 9

Filter, Band Pass, 832 MHz – 862 MHz UL Band 20, LTE-800 3100/90.35 10

Filter, Band Pass, 880 MHz – 915 MHz UL Band 8, GSM-900 3100/90.36 11

Filter, Band Pass, 1710 MHz – 1785 MHz UL Band 3, 4, 9, 10, GSM-1800, LTE-1800 3100/90.37 12

Filter, Band Pass, 1711 MHz – 1756 MHz UL Band 4, 10, AWS, GSM-1800, LTE-1800 3100/90.38 13

Filter, Band Pass, 1850 MHz – 1910 MHz UL Band 2, PCS-1900 3100/90.39 14

Filter, Band Pass, 1880 MHz – 1900 MHz DECT ITU-1, Europe, South Africa, Hong Kong 3100/90.40 15

Filter, Band Pass, 1880 MHz – 1930 MHz DECT ´Global´ 3100/90.41 16

Filter, Band Pass, 1910 MHz – 1930 MHz DECT ITU-2 Latin America 3100/90.42 17

Filter, Band Pass, 1920 MHz – 1930 MHz DECT ITU-2 North America, UPCS 3100/90.43 18

Filter, Band Pass, 1920 MHz – 1980 MHz UL Band 1, UMTS 3100/90.44 19

Filter, Band Pass, 2305 MHz – 2320 MHz UL Band 30, WCS 3100/90.45 20

Filter, Band Pass, 2500 MHz – 2570 MHz UL Band 7, LTE-2600 3100/90.46 21

Filter, Band Stop, 791 MHz – 821 MHz, Oversize DL Band 20, LTE-800 3100/90.75 22

Filter, Band Stop, 921 MHz – 960 MHz, Oversize DL Band 8, GSM-900 3100/90.76 23

Filter, Band Stop, 1805 MHz – 1880 MHz, Oversize DL Band 3, GSM-1800, LTE-1800 3100/90.77 24

Others available on request!

® Names and logo are registered trademarks of Narda Safety Test Solutions GmbH and L3 Communications Holdings, Inc.

Trade names are trademarks of the owners.

Narda Safety Test Solutions GmbH

Sandwiesenstraße 7

72793 Pfullingen, Germany

Phone: +49 7121 9732-0

Fax: +49 7121 9732-790

E-Mail: [email protected]

www.narda-sts.com

Narda Safety Test Solutions

435 Moreland Road

Hauppauge, NY11788, USA

Phone: +1 631 231-1700

Fax: +1 631 231-1711

E-Mail: [email protected]

www.narda-sts.com

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