Renaissance Wireless Edge Newsletter
Volume 6, Issue 10 December 2007


1) ADS-B Avionics
2) New 2.4 GHz SLE
3) Integrated Switch Assemblies: Applications
4) Moving On Up: Higher Frequency Base Station Products
5) Commercial Avionics




1) ADS-B Avionics

The FAA has directed that aircraft must have Automatic Dependent Surveillance Broadcast electronics (ADS-B) by the end of the next decade. The total cost to equip commercial aircraft with ADS-B could exceed $7.4B.

Aircraft operating at or above Level 240 will be equipped with Mode S Extended Squitter and use 1090 MHz as the ADS-B Out data link frequency. Aircraft below that altitude can use either 1090 MHz or UAT on 978 MHz. Smaller aircraft are expected to opt for UAT while airlines worldwide seem to be standardizing at 1090 MHz.

The Air Transport Association sees the proposed rule as being in line with industry expectations, but wants Congress and the FAA to make the ADS-B program a priority by offering financial incentives for accelerated deployment.

Over the past year and a half Renaissance has seen increased interest in the 950-1150 MHz range. The two bands used in the current air traffic control system (ATCRBS) fall in this range. Ground stations use the 1030 MHz band to monitor nearby planes and planes respond on the 1090 MHz band.

Use the search engine to choose from the numerous Renaissance components that support this application:

http://www.rec-usa.com/search.htm


 Package: DROP IN CIRCULATOR

Part Number

Frequency GHz

Temperature C

Isolation Min
dB

Loss Max
dB

VSWR

PowerPK
Watts

PowerCW
Watts

Size    Inch
l * w * h

Click for drawing

Min

Max

Min

Max

3G2NCC

1

1.12

-40

85

20

0.5

1.25

4500

50

1 * 0.3 * 1

3G2NCX

0.96

1.215

-55

86

 

0.3

1.22

300

75

* *

3G2NCXL

0.96

1.215

-55

86

 

0.3

1.22

300

75

* *

3G2NS

0.962

1.213

-55

80

18

0.4

1.3

800

3

1.25 * 0.5 * 1.25

3G3NAG

1

1.12

-40

85

23

0.2

1.15

4500

50

1.25 * 0.365 * 1.25

3G3NBC

1

1.12

-40

95

20

0.3

1.25

1000

20

* *

 

“ADS-B IN” avionics enables aircraft to receive signals from other aircraft flying nearby to improve pilot situational awareness.

There are many advantages to the early adoption of ADS-B including energy savings from modified route patterns where radar is unavailable, such as transatlantic flights. It also has the potential to significantly reduce congestion at major airports. It may never displace the radar currently used by flight controllers but will certainly augment their capabilities in addition to providing some redundancy.

If you are working on a new development call our avionics specialist, Rich Crabtree, to discuss your specific application.

He can be contacted at:
Office:  978-772-7774  x16
Mobile:  978-394-4869

E-mail: rcrabtree@rec-usa.com.



2) New 2.4 GHz SLE

The SLE series of ferrite products has traditionally been available over a variety of frequency bands between 350 and 1600 MHz. These surface mount components have a 10mm square footprint, are typically 5mm in height and are used in a variety of products such as wireless microphones. Key applications of these components have been UHF Transmitters used in television and movie production, stage shows and recording studios, GPS systems (both L1 and L2) and at the IFF frequencies of 1030 and 1090 MHz.

A new component is under development to address applications at 2.4 GHz for wireless network distribution. Application testing will begin this month. Production, based on these results, is expected to begin in the first quarter of 2008.

Part numbers and data sheets will be available as soon as test results are satisfactory.

See our SLE products at:

http://www.rec-usa.com/catalog/ferrites/SLEL.pdf



3) Integrated Switch Assemblies: Applications

Renaissance has a diverse array of Integrated Switching solutions for commercial, industrial, and defense applications. When considering Renaissance Switch Matrices, most customers immediately think Automatic Testing Equipment. While a large percentage of our Switch Matrices are designed for ATE applications, we also address a variety of other requirements.

Renaissance has designed and manufactured Integrated Switching Assemblies for cellular network simulations for mobile phones. These include WiFi VOIP applications and Node B Network testing.

Communication systems for radio lab test verification and VHF field communication restoration are some other areas where these assemblies have featured.

Our Switch Matrices have also been used for radar applications. Radar systems often require fast switching between multiple antennas. Renaissance Switch Matrices are ideal for such applications.

Renaissance Switch Matrices have also found a place in environmental labs for component burn-in monitoring.

Remote access, redundancy, and custom programming are other frequent applications.

Contact the Renaissance Switch Product Group for more information:

Mike Snee, msnee@rec-usa.com or
Gabe Romero, gromero@rec-usa.com



4) Moving On Up: Higher Frequency Base Station Products

As the RF Sub-System line has grown, so has the frequency range. Going beyond the previous range of 1 to 3 GHz, today there are international WiMax opportunities at 3.5 GHz, phased arrays at 6 GHz and even LOS projects operating over 15 GHz. These new opportunities have allowed Renaissance to refine its broadband component knowledge and offer a full range of high frequency and/or broadband sub-systems. These high-frequency sub-systems incorporate all the features of the standard sub-systems but are custom designed for high-frequency applications.

For more information or for an engineering consultation please contact Shane Delmore at 978-772-7774 ext. 21.



5) Commercial Avionics

Renaissance Electronics Corporation has evolved into a major player in the avionics component market with companies such as FreeFlight, Honeywell, Rockwell Collins, and Thales among its customers. What initially was a minor digression is today a major Renaissance focus.

This represents the fruition of intense effort on the part of Renaissance. It involved, among other things, engineering excellence, collaborating with customers in identifying a solution ideally suited to their needs and delivering quality products.

The initial hurdle was familiarizing ourselves with qualification procedures. While we had prior expertise with MIL-Spec documents like MIL-STD-883, MIL-STD-202, etc, this had to be augmented with, firstly, a new avionics vocabulary and, then, RTCA and other requirements for FAA certification.

Today Renaissance enjoys the enviable position of being on a significant number of commercial aircraft around the world. Systems such as DME, DME/ILS, Weather Radars, TCAS systems, Radar Altimeters, ADB-S systems, TACAN, IFF and LRAs incorporate Renaissance components.

Contact our avionics specialist, Rich Crabtree, to discuss your specific application.

Office:  978-772-7774  x16
Mobile:  978-394-4869

E-mail: rcrabtree@rec-usa.com.

To see our latest product release for radar altimeter applications, follow the link below.

3SMH6NA Data Sheet




 


For more information about Renaissance Electronics Corporation and our diverse product line of Ferrite Circulators / Isolators; Coaxial Switches and Switched based products; Switch Matrices and Wireless Base Station Products, please visit our website at www.rec-usa.com or call us at 978-772-7774.

Thank You!
Renaissance Electronics Corporation

Renaissance Electronics Corporation ∙ 12 Lancaster County Road ∙ Harvard, MA 01451        Tel: 978-772-7774