The Distributed Amplifier
(DA) topology is an attractive candidate for SDR applications [1-3].
Clear-Com, a provider of mission-critical voice communication systems, has revealed that the National Academy of Television Arts & Sciences (NATAS) is awarding the company and product inventor, Charlie Butten, each a Technology and Engineering Emmy Awards, for the creation of the Belt Pack: Distributed Amplifier
Systems in Live Production.
designs have been widely used to achieve chip level solid-state amplifiers with a decade and greater bandwidth.
Chapter 1 provides a historical perspective on the most common types of broadband amplifiers and introduces the concept of the cascaded single-stage distributed amplifier
An approximate expression for the small-signal gain of a distributed amplifier
is given by (10)
The model MAAMGM0007-DIE is a single-stage, distributed amplifier
with a single-supply operation specified at +8 V for applications that require a cascadable gain block and 22 to 23 dBm of output power over a 2 to 18 GHz frequency range.
A 2 W, High Efficiency, 2-8 GHz, Cascode HBT MMIC Power Distributed Amplifier
," IEEE MTT-S International Microwave Symposium Digest, 2000, pp.
The total gain of a distributed amplifier
is given by the sum of each stage, nG/2, not their product.
Figure 12 shows the response of an InP HBT-based distributed amplifier
(DA), which achieves a gain of 6 to 7 dB and a bandwidth [greater than] 50 GHz.