JED - May 2013 - 16

t h e

m o n i t o r

|

n e w s

single larger array. This effort is leveraging the work done under DARPA’s earlier Precision Electronic Warfare (PREW)
program, applying the basic capability of time and localization transfer to
next-generation arrays to precisely put
energy on target from disparate origin
points. Chappell says ACT will be much
broader in scope and applicability than
PREW, “taking its initial demonstrations
and showing that the coherent aggregation of energy is applicable for a wide
variety of applications.”

Though the ACT program is not predisposed to any specific process technology, Gallium Nitride (GaN) may have a
role. “It’s expected that researchers will
incorporate device technologies based
primarily on their choice of components
integrated into the common module.
For instance, if the common module
includes PAs or low-noise amplifiers
(LNAs), there might be a desire to implement these in a high-power process such
as GaN. Likewise, silicon technology has
proven very versatile for digital and RF

The Journal of Electronic Defense | May 2013

16

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3/27/13 8:35 PM

applications. New process capabilities
building on the silicon infrastructure
might also play a role in the common
module, however, more traditional military approaches, such as III-V materials,
may have a role due to the increased linearity as an example. The emphasis is on
commonality not on pure performance.
It is anticipated that some array hardware will not be absorbed into the common module and that these components
will remain in the application-specific
portion of the array,” says Chappell.
Similarly, while there is no specific
software development aspect of the
ACT program, Chappell does note that
reconfigurability and adaptability requirements may require some software
components. “For example, if we were
to build an adaptable aperture, what is
the right setting for that aperture for a
given scenario? Addressing the need for
programmability will necessitate input
from multiple levels of analysis, including simulation.”
In terms of the DODs focus on the
development of multi-function arrays
and systems, Chappell agrees that they
are related, however he emphasizes that
ACT should not be confused with other
approaches for multifunctional array
design in which the array is meant to
simultaneously handle different application spaces without any hardware
changes. “For ACT, EW, signal identification, radar, and communications
systems are considered distinct applications with widely varying specifications, or personalities, but they may
share a common underpinning of technology that we aim to exploit with the
common module approach. We expect
the technology base to complement ongoing efforts to make multifunctional
systems. However, the system that we
aim to develop would be retaskable and
not concurrently multifunctional.”
As this issue of JED went to press,
DARPA was anticipating that it would
soon release a Broad Agency Announcement (BAA) for the program, which
is expected to be a four-phase effort
over four years. Chappell says the exact length of each phase, approximate
funding levels, and specific milestones
will be detailed in the BAA, but “broadly speaking, each phase will end with


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JED - May 2013

Table of Contents for the Digital Edition of JED - May 2013

The View From Here
Conferences Calendar
Courses Calendar
From the President
Letters
The Monitor
The Monitor
The Long Hard Road – EW’s Future in Europe
Technology Survey: Signal Generators
Two Domains Are Better Than One
Preview: AOC 50th Anniversary
EW 101
Book Review
AOC News
Index of Advertisers
JED Quick Look
JED - May 2013 - cover1
JED - May 2013 - cover2
JED - May 2013 - 3
JED - May 2013 - 4
JED - May 2013 - 5
JED - May 2013 - The View From Here
JED - May 2013 - 7
JED - May 2013 - Conferences Calendar
JED - May 2013 - 9
JED - May 2013 - Courses Calendar
JED - May 2013 - 11
JED - May 2013 - From the President
JED - May 2013 - 13
JED - May 2013 - Letters
JED - May 2013 - The Monitor
JED - May 2013 - 16
JED - May 2013 - 17
JED - May 2013 - 18
JED - May 2013 - 19
JED - May 2013 - 20
JED - May 2013 - 21
JED - May 2013 - 22
JED - May 2013 - 23
JED - May 2013 - 24
JED - May 2013 - 25
JED - May 2013 - The Monitor
JED - May 2013 - 27
JED - May 2013 - The Long Hard Road – EW’s Future in Europe
JED - May 2013 - 29
JED - May 2013 - 30
JED - May 2013 - 31
JED - May 2013 - 32
JED - May 2013 - 33
JED - May 2013 - 34
JED - May 2013 - 35
JED - May 2013 - 36
JED - May 2013 - 37
JED - May 2013 - 38
JED - May 2013 - 39
JED - May 2013 - 40
JED - May 2013 - Technology Survey: Signal Generators
JED - May 2013 - 42
JED - May 2013 - 43
JED - May 2013 - 44
JED - May 2013 - 45
JED - May 2013 - 46
JED - May 2013 - 47
JED - May 2013 - Two Domains Are Better Than One
JED - May 2013 - 49
JED - May 2013 - 50
JED - May 2013 - 51
JED - May 2013 - Preview: AOC 50th Anniversary
JED - May 2013 - 53
JED - May 2013 - 54
JED - May 2013 - EW 101
JED - May 2013 - 56
JED - May 2013 - 57
JED - May 2013 - 58
JED - May 2013 - Book Review
JED - May 2013 - 60
JED - May 2013 - AOC News
JED - May 2013 - 62
JED - May 2013 - 63
JED - May 2013 - 64
JED - May 2013 - Index of Advertisers
JED - May 2013 - JED Quick Look
JED - May 2013 - cover3
JED - May 2013 - cover4
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