Broadband antennas and arrays operating in microwave and millimeter wave bands have witnessed growing demand due to their many applications in radars, communications, and various sensors. Broadband antennas and arrays involve many problems including broadband antennas, broadband feeding network, mutual coupling between array elements, grating lobe, and scan blindness and resonance.

Investigators are invited to contribute original research papers as well as review articles that will stimulate the continuing efforts to develop new broadband antennas that are suitable for broadband arrays including monopulse applications and compact broadband feeder and new approaches to eliminating scan blindness and improving the active VSWR performance of phased arrays.

We are particularly interested in articles describing new structures and novel design concepts for broadband antennas and arrays that utilize unconventional ideas, methods, or materials and so forth. Potential topics include, but are not limited to:

• Latest technologies in broadband antenna design
• Novel design concepts for broadband antennas and arrays
• Band expansion of antennas for phased arrays
• Elimination of grating lobe for broadband arrays
• Design of broadband feeding networks
• Active and non-Foster impedance matching
• Simulation and modeling of broadband arrays
• Broadband monopulse antennas
• Broadband conformal arrays and phased arrays
• Recent developments in scanning antenna array design
• Wide angle scanning arrays and their pattern synthesis

Before submission, authors should carefully read over the journal’s Author Guidelines, which are located at http://www.hindawi.com/journals/ijap/guidelines/. Prospective authors should submit an electronic copy of their complete manuscript through the journal Manuscript Tracking System at http://mts.hindawi.com/submit/journals/ijap/baaa/ according to the following timetable: