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1. IoT devices require low antenna-to-antenna isolation and face challenges of TX-to-RX self-interference and TX-to-TX interference in coexisting multi-radio systems.
2. Existing schemes address TX-to-RX self-interference but little has been done to resolve the issue of TX-to-TX interference.
3. The proposed solution is a dual-band transmitter with an on-chip feedforward TX-to-TX interference cancellation path for low antenna-to-antenna isolation in IoT devices.
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