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This paper extends the results of the planar 4-element case in multiple interrogation of phase-conjugating arrays by demonstrating the expected higher resolution provided by an 8-element array, along with the desensitization of beam-pointing error due to phase imbalance between interrogators. This paper also adds a brief analysis to effectively characterize the PCA's operation in multiple-interrogator...
This paper described the miniaturization challenges in implementing an RDA architecture for a heavily resource-constrained CubeSat platform; by demonstrating this, a transition towards implementation on other highly mobile platforms can be accelerated. Addressing size, weight, and power in RDAs can be achieved through downsizing of circuitry through PCB design while reducing power consumption in each...
A retrodirective array designed to respond to nonuniform wavefronts is presented. The design overcomes the limitations of existing phase-detection-based retrodirective array architectures by measuring the phase difference between adjacent element pairs to increase array resolution. The transmit and receive frequencies are 2.45 and 2.4 GHz, respectively. Measurements demonstrate the ability to retrodirect...
The performance of a phase-conjugating array (PCA) in a multiple-interrogator environment is investigated. The PCA demonstrates the ability to properly retrodirect signals toward multiple interrogators to varying degrees, dependent on phase, angle of incidence, and amplitude differences between the interrogators. The effect of the three parameters is demonstrated for the 6-GHz array at interrogating...
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