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A square holey cladding waveguide is designed and fabricated to support TE and TM polarizations for 180 GHz to 360 GHz chip-to-chip communication. The mode profile and normalized output power of the waveguide are simulated. A fabricated waveguide is tested using a vector network analyzer for mode mapping and loss measurements. The mode profile was mapped using a 250 μm pinhole stepped across the waveguide...
This paper presents a multi-phase clock generation technique, which employs coupled oscillators with capacitive-coupling to achieve both low-power and low-noise characteristics. An oscillator core equipped with both dual tanks and adaptive biasing feedback is proposed. To prove the concept, a four-core coupled oscillator is fabricated in a 130nm CMOS RF SOI process. The VCO RFIC achieves measured...
Carrier aggregation supports an increased total bandwidth, data rate and utilization of available fragmented spectrum, where the latter is a core component of next generation Wi-Fi and Cellular networks, including 5G. Wireless communications receivers with intra-band non-contiguous CA, employing conventional complex mixers and base-band circuitry, are desirable, however risks of VCO injection pulling...
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