Title :
Megalithic microwave signal processing for phased-array beamforming and steering
Author :
Ohira, Takashi ; Suzuki, Yoshinori ; Ogawa, Hiroyo ; Kamitsuna, Hideki
Author_Institution :
NTT Wireless Syst. Labs., Yokosuka, Japan
fDate :
12/1/1997 12:00:00 AM
Abstract :
A microwave signal processing (MSP) architecture is presented for active phased array beam forming and steering. A large scale network, comprising 63 power dividers and 32 pairs of vector-synthetic phase/amplitude controllers, has been successfully developed in an 11 mm×13 mm GaAs monolithic microwave integrated circuit (MMIC). It has a huge integration level of 128 metal-semiconductor field effect transmitters (MESFETs), 448 spiral inductors, 527 metal-insulator-metal (MIM) capacitors, and 357 ion-implanted resistors. The expected 360° phase is successfully obtained at all the output ports. Vector error standard deviations exhibited are within 0.38-dB root-mean square (rms) and 2.8° r.m.s. over the bandwidth of 20 MHz at 2.5 GHz. This megalithic chip could mark an epoch in phased array systems
Keywords :
III-V semiconductors; MESFET integrated circuits; MIM devices; MMIC; antenna phased arrays; array signal processing; field effect MMIC; gallium arsenide; microwave phase shifters; satellite communication; 2.5 GHz; 20 MHz; GaAs; MESFET; MIM capacitors; ion-implanted resistors; large scale network; megalithic microwave signal processing; monolithic microwave integrated circuit; phased array systems; phased-array beamforming; phased-array steering; power dividers; spiral inductors; vector error standard deviations; vector-synthetic phase/amplitude controllers; Array signal processing; Gallium arsenide; Large scale integration; MMICs; Metal-insulator structures; Microwave antenna arrays; Microwave integrated circuits; Phased arrays; Power dividers; Signal processing;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
