new ‘low pim’ coaxial switches - mouser electronics · low pim coaxial switches information...

New ‘LOW PIM’COAXIAL SWITCHES

November 2013

Important note

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=> LOW PIM Introduction.

=> LOW PIM Product Information.

=> LOW PIM Applications.

=> Competition.

RADIALL ‘LOW PIM’ INTRODUCTION

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Introduction : What is PIM ?

• The Passive Intermodulation (PIM) is a signal distortion that occurs whensignals at several frequencies are transmitted thru a passive device(connector, cable, switch, antennas…) which has some non-linearresponse. Then the fundamental frequencies will be distorted and series ofhigher order harmonic frequencies will appear in the frequency domain. Ifsome of these frequencies appear in the receive bands of a wireless systemit will raise the receiver noise floor and reduce the system performance.

• The main sources of intermodulation in wireless systems are the activedevices in transceivers and receivers but their intermodulation can bereduced or eliminated by filtering which is not possible for passive devicesinserted in transmission line. Therefore when intermodulation becomescritical for a system the only solution is to use Low PIM passive devices.

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Introduction : How is PIM specified ?

• If we call F1 and F2 the fundamental frequencies (carrier frequencies), then thepossible PIM frequencies can be described as follow:

FPIM = n.F1 ± m.F2 n + m is the order of intermodulationFor example: 2F2-F1 (m=2 and n=1) or 2F1-F2 results to a 3rd order PIM product.

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Introduction : How is PIM specified ?

• Usually odd PIM orders (3rd, 5th, 7th…orders) are the main concern becausetheir frequencies are close from the carrier frequency and may disturb thesystem behavior. As the strength of the signal decreases with the order ofPIM, the 3rd order is often the most critical and is the one usually tested andspecified by component manufacturers.

• PIM is specified in dBc and dBm terms: dBm is a measure of power relativeto 1mW and dBc is a measure of dB below a given carrier level. A typicalpower level in testing passive devices is +43dBm (20W). In that case if thePIM level is -110dBm, it is equivalent to a PIM level value of :

-110-43= -153dBc

A low PIM device has typically a PIM level of -150 to -160dBc

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Introduction : Telecoms situation...

• Today there is a growing demand on wireless communication devices withhigher data rates. 4G or LTE (Long Term Evolution) is the fourth generationstandard for mobile phone and allows supplying speeds almost 10 times higherthan current networks and providing an answer to this frenetic growth of dataconsumption. The deployment of 4G networks is designed to cope with theexplosion of mobile use. Data volumes on the network operator Orange, forexample have been multiplied by 68 in 5 years and will still grow by a factor of 7by 2015...

• This exploding demand will request wireless and RF systems to be very reliableand to work with their full coverage capacity. Since Passive Intermodulationcould seriously impact these performances, the low PIM devices will be of highinterest for wireless and RF Test industry.

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RADIALL LOW PIM Products available today

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Low PIM coaxial cable range N & 7/16

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RADIALL coaxial cables range R285 series…

Interface : N & 7/16Impedance : 50 OhmsFrequency rangeN : 0-11GHz7/16 : 0-7,5GHzPIM3 :-125dBm (-168dBc) at 20watts

Typical characteristics

More information are available in RADIALL Application Guide D1 032 DE,Low PIM Connectors & Adaptators as well…

Low PIM coaxial cable SMA

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With SHF4.2mm or semi-rigid (0,141) cablesNot yet codified / upon specific request

Typical characteristics

Interface : SMAImpedance : 50 OhmsFrequency range : 0-18GHzPIM3 :-117dBm (-160dBc) at 20watts

RADIALL has decided to launch Low PIM variants of its RAMSES switch range.

LOW PIM Coaxial switchesinformation

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Product information : RADIALL offer...

Based on our high runners used in the test industry find below RADIALL devices which will be introduced in the market place:

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=> SPDT SMA DC-18GHz (based on R570 series)=> SPDT N DC-12.4GHz (based on R570 series too)=> SP4&6T SMA DC-18GHz (based on R573 series)

=> SP4&6T N DC-12.4GHz (based on R573 series)

=> DPDT SMA SMA DC-18GHz (based on R577 series)=> DPDT N DC-12.4 GHz (Based on R577 series)

Product information : IM Performances...

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• The typical value for RADIALL RAMSES coaxial switches isaround 120dBc (with 2 carriers at +43dBm, i.e. 20 watts)

Now RADIALL LOW PIM products are guaranteed at

(with the same carriers level at +43dBm)

Product information : RADIALL codification

Part number Selection SPDT SMA DC-18GHz& SPDT N DC-12.4GHz

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132 P/N(s)

Product information : RADIALL codification

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Part Number Selection SP6T SMA DC-18GHz& SP6T N DC-12.4GHz

160 P/N(s)

Product information : RADIALL offer...

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Part number Selection DPDT SMA DC-18GHz& DPDT N DC-12.4GHz

176 P/N(s)

Product information : Delivery

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• Delivery:=> Average delivery : 4/6 weeks ARO (up to 50pcs max). However, consult us for confirmation. For first order of new parts numbers, creationtime must be taken into account.

Applications

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Instrumentation

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• Modular Instrumentation • VXI, PXI & LXI switching modules

• Instrumentation (various test benches)=> ATE (Telecom equipment testing)

- Cellular infrastructure site testing

- Components and assembly shop test stations

- Components and assembly shop test stations• Instrumentation (various test benches)

=> Laboratory test benches- Qualification / certification

- Environmental & Temperature test chambers

RADIALL Strengths

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COMPETITION

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RADIALL Strengths vs Competition

Best Life Span => 2 millions cycles (the best on the market place).

Best performances => -160dBc (PIM 3rd order frequency).

Additional Low PIM RADIALL devices (various coaxial cables).

Large offer (500 parts numbers) because it’s an extension of our RAMSES modular switch range.

High reliability & excellent RF performances

• Please let us know how we can support your needs

• Switch SupportFor Questions Email: USA: Scott.krieg@radiall.com

• Thank you!

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