Archive for the ‘Webcasts’ Category

Webcast: Spur-free Switching Power Converters for RF

Monday, September 3rd, 2012

Join Besser Associates and Microwave Journal Magazine for a webcast on Spur-free Switching Power Converters for RF and Analog Loads on Tuesday September 18, 2012 at 8am PT/ 11am ET/ 3pm UTC.

A critical aspect of lowering the power consumption in communication and navigation devices is the process of converting power from the battery to the various loads in the system. However, the noise-sensitive RF circuitry in these devices is limiting the use of efficient energy conversion schemes, such as switching power converters, due to the significant switching noise associated with them. This webinar will discuss various power conversion techniques used for powering of noise-sensitive analog/RF loads and the most recent advancement in the design of RF-friendly spur-free switching power converters that enable powering RF PAs directly from buck converters without compromising mixing or interference specifications.

Be sure to check out our four-day course on the topic, which will be held in San Diego, February 2013:

Power Conversion & Regulation Circuits for VLSI Systems
Feb 25-Feb 28, 2013 Course 224-4531
Presented by Ayman Fayed Register by 1/21/2013 and pay $1795, otherwise pay $1995 Register Online

Webinar: Passive Components/Filters

Friday, October 21st, 2011

The Microwave Journal/Besser Associates webinar series continues with instructor Dr. Bob Froelich discussing the important aspects of RF and microwave filters. The presentation will take place on Tuesday November 22 at 8AM Pacific Time. Visit the Microwave Journal resources page to register for the event. Topics covered include:*

  • Various filter response types: lopass, highpass, bandpass and bandstop response
  • Selectivity of filter design types – Butterworth, Chebychev, Gaussian
  • Basic design principles
  • Components for filter design

The 45-minute talk will be followed with a 15-minute Q&A session.  *Exact outline may be subject to change, visit the registration page listed above for the latest information.

Webcast: LNA’s

Tuesday, September 27th, 2011

The Besser Associates/Microwave Journal webcast series continues on Tuesday, October 18th (8AM Pacific Time) with Small Signal Amplifiers: LNA’s. Instructor Bob Froelich will discuss the following items in his 45-minute talk:

Small-Signal Applications
Small-Signal Performance Metrics
• Gain
• Noise Figure
• Distortion
• Power Consumption
• DC Bias

Dr. Froelich will also present an in-depth course on RF Circuit principles (including LNA design)  in the Dallas area this November:

Applied RF Techniques I
S-parameters, Smith Chart, parasitic effects, transmission lines, filters, LNA’s and more.
Nov 14-Nov 18, 2011 Course 001-4427
Presented by Bob Froelich Register by 10/10/2011 and pay $2095, otherwise pay $2295 Register Online

Webcast: Passive Components: Dividers, Couplers, Combiners

Wednesday, August 31st, 2011

The Besser Associates/Microwave Journal webcast series continues this month. Instructor Robert Froelich will discuss RF dividers, couplers, and combiners on Tuesday September 20 at 8AM Pacific Time.

Power Dividers
• 2-way, 3-way and N-way
• Isolation and loss
• Phase relationships
• Uneven power division
• Combining RF power

Directional Couplers
• Properties
• Coupling, Isolation, and Directivity

Power Splitters and Resistive Dividers

Registration is available via the Microwave Journal Website.

Dr. Froelich will be teaching the Applied RF Techniques I course in Irving, TX this November. Follow the links below for more information:

Applied RF Techniques I
Nov 14-Nov 18, 2011 Course 001-4427
Presented by Bob Froelich Register by 10/10/2011 and pay $2095, otherwise pay $2295 Register Online

Webcast: LTE Broadband Wireless Access

Tuesday, July 5th, 2011

The Besser Associates/Microwave Journal webcast series continues this month with a presentation on LTE Broadband Wireless Access with instructor Doug Morais.

- UMTS Evolution
- Some key LTE technologies, including OFDMA and SC-FDMA
- The 3GPP LTE standard
- Mobile WiMAX standard summary
- LTE and Mobile WiMAX comparison
- Conclusion

Doug Morais has over 40 years of experience in wireless design and management. Before starting Adroit Wireless Strategies, a wireless consulting and training company, he held executive management positions at Harris Corporation, Digital Microwave Corporation, California Microwave Inc., and Ortel Corporation. At Harris, he held microwave radio design and engineering management positions for 11 years. He has authored several papers on digital microwave communications and the book Fixed Broadband Wireless Communications. He holds a U.S. patent that addresses point-to-multipoint microwave radio communications. He has a Ph.D in Electrical Engineering, is a senior and life member of the IEEE, and a member of the IEEE Communications Society.

To fully understand the details of LTE technologies, you will want to take Doug’s upcoming course:

LTE Mobile Access
Aug 18-Aug 19, 2011 Course 213-4400
Presented by Douglas H. Morais Register by 7/11/2011 and pay $995, otherwise pay $1095 Register Online

This course provides an overview of the system architectures, principles involved, techniques applied, and performance achieved in UMTS’s Long Term Evolution (LTE) mobile broadband access (MBWA) system. The typical types of packet switched data conveyed by this system is studied. Key enabling technologies are presented including: relevant digital modulation techniques, error detection/correction methods, and multiple access and NLOS techniques employed in Point-to Multipoint (PMP) systems. The non-line-of-sight (NLOS) mobile wireless fading path is reviewed. The LTE network architecture and supporting protocols are introduced.Key physical layer and MAC features are presented. The key parameters of LTE’s UMTS predecessor, HSPA, as well as those of Mobile WiMAX are compared to those of LTE. Finally, the next evolution of LTE, i.e. LTE-advanced, is introduced.