Microwave heating cavities and applicators - Microwave-Assisted Concrete Technology: Production, Demolition and Recycling - page 200

(a)
(b)
Figure 6.5 Circulator (a) and water load (b).
loads absorb the reflected power by directing it into a high-loss solid. The
high-loss solids used in dry loads are commonly made of silicon carbide.
Both types of dummy load have distinct advantages and disadvantages. The
most important advantage of wet loads is their small size and high-power
rating as compared to dry loads [1]. Wet loads are often preferred in high-
power microwave heating processes, whereas dry loads are preferred for
applications that require standing waves to be minimised, including travel-
ing wave applicators [1].