Conceptual design and software simulation of a wideband leakage cancellation circuit
Ang, Teo Hong
Jenn, David C.
Pace, Phillip E.
MetadataShow full item record
The objective of this thesis is to investigate a Wideband Leakage Cancellation Circuit (WLCC) to facilitate potential improvement of range resolution in single antenna Frequency Modulated Continuous Wave (FMCW) radar, as well as other applications. The research has successfully extended the operating bandwidth of a basic single frequency LCC by the use of a Frequency Demultiplexing and Multiplexing Circuit (FDMC) consisting of a bank of N leakage cancelling branches. The WLCC was designed, tested and evaluated through a low risk and cost-effective approach, using an electronic-design automation software system known as the Advanced Design System (ADS) 2009 developed by Agilent Technologies. The WLCC was successfully evaluated by benchmarking its performance against that of a single frequency Leakage Cancellation Circuit (LCC), both with ideal and non-ideal component parameter settings. The robustness of the WLCC was also evaluated by a series of simulations with antenna load mismatch conditions. Future work and development was proposed on the current WLCC design to support ongoing NPS research on the Wirelessly Networked Distributed Digital Phased Array (WNDDPA).
Approved for public release; distribution is unlimited
Showing items related by title, author, creator and subject.
Harbour, Joel P. (2001);The Navy has announced its conviction to make its warships run on electric power through the decision to make its newest line of destroyers propelled with an electric propulsion system. Several ship construction firms and ...
Determinants of Utilization and Cost of VHA Care by OEF/OIF Veterans Screened for Mild Traumatic Brain Injury Amara, Jomana; Pogoda, Terri K.; Krengel, Maxine; Iverson, Katherine M.; Baker, Errol; Hendricks, Ann (2014-09);Objective: To determine the demographic and service characteristics that differentially impact utilization and cost of Veterans Health Administration (VHA) services for Operation Enduring Freedom and Operation Iraq ...
Performance analysis of modified M-ARY PSK and QAM signaling schemes in the presence of noise and jamming Gunes, Fikret (1986-06);The purpose of this thesis is to evaluate and compare the performance of certain M-ary digital modulation schemes such as MPSK, QAM and certain modifications to these which have not been considered in previous analyses. ...