A New Look at the Coding in Time-Modulated Arrays
سال انتشار: 1400
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 181
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شناسه ملی سند علمی:
JR_ITRC-13-4_001
تاریخ نمایه سازی: 22 فروردین 1401
چکیده مقاله:
In this paper, we show that the digital code bits used in the coded time-modulated arrays (TMA) can be interpreted as vector elements, and with this new interpretation, a better understanding of the relationship between the codes and the amplitude/phase of the generated harmonic signals is obtained. Using such interpretation, we first select the proper codes for the maximum radiation in a coded TMA, and then we show that one can easily perform the beam steering in a TMA by electronically shifting the bits of the selected codes. Through full-wave simulations, we demonstrate the beam steering of a TMA without the use of any phase shifter, and only by shifting the digital code bits. The proposed interpretation can play an important role in reducing the complexity of the code selection in controlling of TMAs.
کلیدواژه ها:
نویسندگان
Mehdi Gholami
School of Electrical and Computer Engineering, College of Engineering, University of Tehran, Tehran, Iran
Ehsan Sadeghi
School of Electrical and Computer Engineering, College of Engineering, University of Tehran, Tehran, Iran
Mohammad Neshat
School of Electrical and Computer Engineering, College of Engineering, University of Tehran, Tehran, Iran