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A 10-mW Submillimeter-Wave Solid-State Power-Amplifier Module

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11 Author(s)
Radisic, V. ; Northrop Grumman Corp., Redondo Beach, CA, USA ; Deal, W.R. ; Leong, K.M.K.H. ; Mei, X.B.
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In this paper, we demonstrate a packaged sub-millimeter wave solid-state power amplifier (SSPA). The SSPA is implemented in coplanar waveguide (CPW) and uses an advanced high fMAX InP HEMT transistor with a sub 50-nm gate. A monolithically integrated CPW dipole-to-waveguide transition eliminates the need for wirebonding and additional substrates. On-chip compact tandem couplers are used for power combining. The amplifier demonstrates 15-dB small-signal gain at 340 GHz. Peak saturated output power of 10 mW at 338 GHz is obtained at the waveguide flange out-put for the SSPA module.

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Microwave Theory and Techniques, IEEE Transactions on  (Volume:58 ,  Issue: 7 )