An HQ tube arrangement suitable for packaging within a vehicle may be designed
by creating a mathematical model representing a tube arrangement having a first
passageway and a second passageway fluidly connected to the first passageway at
first and second junctions. The second passageway is divided by the junctions into
first, second, and third passages. Lengths are associated with each of the first
passageway and the first, second, and third passages. A filter parameter, based
upon an average transmission loss for a particular frequency over a standard deviation,
is analyzed as a function of the lengths. Lengths are chosen based upon analysis
of the filter parameter. Portions of the outer walls of the first and second passageways
may be secured to or common to one another so that lengths of the passageways run
along side of each other to provide a more compact HQ tube arrangement.