{"title":"Energy patterns of the prototype Impulse-Radiating Antenna","authors":"D. Giri, F. Tesche","doi":"10.1109/URSIGASS.2011.6050712","DOIUrl":null,"url":null,"abstract":"A question that often comes up in the context of an Impulse-Radiating Antenna (IRA) is “How is the transient energy from the pulser radiated in space”? Of course, the electromagnetic fields (both E and H), the power density and the energy density have their maximum on the boresight. The power pattern is a well-defined frequency domain concept, but it is a cumbersome descriptor for hyperband antennas like the IRA because of the multitude of frequencies involved. In this paper we explore the concept of an energy pattern, which is valid both in time and frequency domains. An energy pattern is useful in visualizing where the transient energy injected into the IRA is going. It is further noted that the energy and power patterns are identical for a CW antenna, but they can be vastly different for pulsed antennas.","PeriodicalId":325870,"journal":{"name":"2011 XXXth URSI General Assembly and Scientific Symposium","volume":"1 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2011-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2011 XXXth URSI General Assembly and Scientific Symposium","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/URSIGASS.2011.6050712","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 2
Abstract
A question that often comes up in the context of an Impulse-Radiating Antenna (IRA) is “How is the transient energy from the pulser radiated in space”? Of course, the electromagnetic fields (both E and H), the power density and the energy density have their maximum on the boresight. The power pattern is a well-defined frequency domain concept, but it is a cumbersome descriptor for hyperband antennas like the IRA because of the multitude of frequencies involved. In this paper we explore the concept of an energy pattern, which is valid both in time and frequency domains. An energy pattern is useful in visualizing where the transient energy injected into the IRA is going. It is further noted that the energy and power patterns are identical for a CW antenna, but they can be vastly different for pulsed antennas.