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We demonstrate a fully integrated 2×2 SiGe transmitter array at 316 GHz. A novel method is introduced to phase-lock the high frequency signal sources without any additional circuitry. This method suppresses the other possible oscillatory modes automatically. The power of the locked signal sources are combined in the air by the 2×2 on-chip antenna array which are fed with the locked sources. This array...
We present a 314 GHz transmitter and receiver chipset which is implemented in an advanced SiGe HBT platform, and which has on-chip antennas. The transmitter uses an active antenna structure, where the generated on-chip signal is directly fed into the antenna. The receiver consists of a novel sub-harmonic resistive mixer with an on-chip high-power differential signal source feeding the LO port. A test...
This paper addresses the design and measurement results of two high frequency signal sources implemented in SiGe HBT technology. The 367 GHz signal source achieves a phase noise of −110 dBc/Hz at 10 MHz offset from the carrier and provides better than −8 dBm of output power. The 154 GHz signal source achieves a phase noise of −87 dBc/Hz at 1 MHz offset from the carrier and generates +7 dBm of differential...
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