The most probable candidate for the airplane in the Aviation Week article would be the Republic AP-100, given that the AP-100 used three lift fans and was powered by General Electric J85s, while capable of Mach 2 and featuring a delta wing design. The timeframe in which the AP-100 was designed (1959/1960) also appears to match the timeframe in which the issue is published.
More info on the AP-100 is found in Tony Buttler's book American Secret Projects: Fighters & Interceptors 1945-1978. The design of the AP-100 with respect to the type of VTOL propulsion system used shows that by the late 1950s, the lift jet/vectored thrust was seen as a more efficient means of VTOL for jet fighters because it eliminated the drawbacks of the tailsitter concept.