Kalfa, MertErtürk Vakur B.2016-02-082016-02-082014-07http://hdl.handle.net/11693/27873Date of Conference: 6-11 July 2014Conference name: 2014 USNC-URSI Radio Science Meeting (Joint with AP-S Symposium)Slotted waveguide antennas are being widely used in military and commercial applications for many decades. Low cross-polarization, high power capacity, ease of fabrication in microwave bands, and the ability to form arrays make them excellent candidates for phased array antennas in radar applications. However, due to slots being highly resonant (narrow-band, high Q) radiators, their design parameters are very sensitive; hence, accurate design and analysis methods are required for a successful antenna design. Moreover, slotted waveguide array antennas are low-profile structures, which makes them suitable candidates for conformal and structure-integrated applications. Conformal and structure-integrated system solutions are especially required for air platforms, where aerodynamics, radar cross-section (RCS) and efficient use of real estate are of utmost importance. Although the accurate and efficient design and analysis of low-profile conformal slotted waveguide arrays are of great interest, available solution methods in the literature usually suffer in terms of efficiency and memory requirements. Among the available solution methods, one of the widely used solvers are integral equation (IE) based ones that utilize the method of moments (MoM). However, IE solvers suffer from long matrix fill times, especially for matrix entries related to the cylindrically stratified media. © 2014 IEEE.EnglishAntenna phased arraysAntennasDesignIntegral equationsMethod of momentsMilitary applicationsRadar antennasRadar cross sectionRectangular waveguidesCommercial applicationsCylindrically stratified mediaIntegrated applicationsLow cross polarizationMethod of moments (MOM)Phased array antennasSlotted waveguide arraySlotted-waveguide antennasSlot antennasConference Paper10.1109/USNC-URSI.2014.6955528