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M565: RF Balun Transformers

From M/A-COM
 

 
This application note is designed to help the reader understand how balun transformers can be used in today's RF/Microwave communication applications. There is an increasing demand for balun transformers in today's telecommunication market and M/A-COM is leading the field with this device. As many as six of this device can be used around any particular chip as illustrated in figure 4. M/A-COM's balun transformer can be classified into two groups A) The flux coupled balun transformer and B) The transmission line balun transformer. Insertion Loss (dB): Loss due to transmission from primary dot port to secondary dot port and secondary port. Most balun transformers are symmetrical through their central horizontal axis, therefore, an input can be applied at the primary dot port or the primary port with differential outputs at the secondary dot and secondary ports. Amplitude Balance (dB): Measure of the difference in amplitude between the two differential outputs. Phase Balance (degrees): Measure of the difference in phase between the two differential outputs, i.e. measured from ±180°.
Products & Services
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Product Announcements
North Hills Signal Processing - Balun Transformers - Extended Video (20Hz - 6MHz)
A line of 50 and 75 ohm baluns with an extremely low (20) Hz frequency cut-off. (read more)
North Hills Signal Processing - Balun Transformers - General Purpose (1kHz-125MHz)
A complete line of balun transformers to match 50 and 75 ohm unbalanced circuits to a wide range of balanced impedances. North Hills offers three series with varying frequency ranges to cover a wide... (read more)
North Hills Signal Processing - High Frequency Wideband Transformer 5 MHz–1.2 GHz
Ultra High Frequency 50 ohm to 100 ohm balun provides an easy and straightforward means of measuring circuit characteristics to 1.2 GHz. (read more)
Datatronics™ - Custom RF Transformers
Datatronic Distribution, Inc. designs and manufactures custom wide-band RF, balun and RF/pulse transformers in SMD or thru-hole packages to match your specifications. (read more)
North Hills Signal Processing - Balanced Impedance Adaptor
To facilitate high-accuracy impedance measurements, inputs to Impedance Analyzers and LCR Meters are configured as four-terminal Kelvin connections –... (read more)
Datatronics™ - LM302-1L Line Matching Transformer
New Low Profile Sealed Line Matching Transformer Offer Performance, Safety and Economy... (read more)
Coilmaster Electronics Co., Ltd. - Surface Mount Beads : SMB403025 series
1. Surface Mount Beads 2. High performance medium DC power and signal filtering . 3. High frequency broadband transformers (balun core devices ) 4. Ideal for wide band choke are mainly used in... (read more)
 
Topics of Interest
Sec 9.1: Introduction The balun ( balanced-to- unbalanced) transformer is a subset of the general class known as transmission line transformers. This class differs greatly from the conventional... (Read More)
A Balun, as shown in Fig. 1, is a two-winding transformer designed to convert a single ended (i.e. one side grounded) signal to one balanced with respect to ground. The balanced winding may or may not... (Read More)
A Balun, as shown in Fig. 1, is a two-winding transformer designed to convert a single ended (i.e. one side grounded) signal to one balanced with respect to ground. The balanced winding may or may not... (Read More)
Sec 5.1: Introduction Chapter 4 dealt with transformer parameters for working at low-impedance levels; transformers which are basically used to match the ubiquitous 50- ? cable to impedances... (Read More)
Sec 17.1: Introduction Two common uses of transformers are in power combiners/splitters and diode double-balanced mixers. Because these circuits typically use transformers with bifilar or trifilar... (Read More)
See more product announcements for RF Transformers
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