Abstract: A multicarrier radio frequency (RF) transceiver implementing dynamic spectrum access (DSA) is capable of sensing a spectral environment and transmitting an RF signal at the same time. The transceiver can cancel an RF transmit signal component within a composite receive signal using a combination of analog and digital cancellation. In one embodiment, analog RF cancellation is performed to reduce the level of a transmit signal component of a composite receive signal before the signal reaches an RF receiver. The RF cancellation may be used to reduce the transmit signal component to a level that maintains the linear operation of the RF receiver. Digital cancellation may be performed to reduce transmit signal remnants within an output signal of the RF receiver. Digital cancellation may be performed on a subcarrier-by-subcarrier basis in some implementations.

Abstract: Disclosed subject matter is directed to techniques and systems for analyzing a system design having a phase array antenna. In at least one implementation, component models of individual components of the phased array antenna may be provided. The component models may be arranged as a multi-dimensional lookup table (LUT) in some embodiments. A single-channel model of antenna performance may be synthesized for the system design based on the component models. An analysis of the performance of the system design may then be performed using the single-channel model of antenna performance.