A multibeam subarrayed time-modulated linear array

Uğur YEŞİLYURT; İhsan KANBAZ; Ertuğrul AKSOY

doi:https://doi.org/10.3906/elk-1904-201

Article Details

A multibeam subarrayed time-modulated linear array

Authors:

Uğur YEŞİLYURT | İhsan KANBAZ | Ertuğrul AKSOY

Publisher:

TUBITAK

Journal:

Turkish Journal of Electrical Engineering and Computer Science 2020 Vol.28 Issue 2, pp.784-798

Document Type:

Article

Publication Date:

2/2020

Document Language:

English

Document ID (Org No.):

2000733223

Frequency:

Bimonthly

eISSN:

1303-6203

pISSN:

1300-0632

DOI:

https://doi.org/10.3906/elk-1904-201

Abstract:

 

In conventional time-modulated arrays  TMAs , because of the usage of the RF-switch, harmonics are  generated at multiples of the modulation frequency. In this study, the synthesis of time-modulated arrays has been  analyzed for cognitive radio  CR  systems, in which these harmonics are suitably exploited for more efficient utilization  of the spectrum. In order to accomplish the desired pattern at requested harmonic frequencies, a new excitation strategy  with sinusoidal signals is proposed. The use of sinusoidal waveforms creates independent beams, allowing independent  steering capability. Moreover, by utilizing the subarray structure, it is possible to have a smaller number of excitation  functions in the hardware. It is shown by means of explanatory examples that the effectiveness of the proposed approach  is due to free-adjustable beamforming, beam steering, and low complexity.

Article Details

A multibeam subarrayed time-modulated linear array

Authors: Uğur YEŞİLYURT | İhsan KANBAZ | Ertuğrul AKSOY

Publisher: TUBITAK

Journal: Turkish Journal of Electrical Engineering and Computer Science 2020 Vol.28 Issue 2, pp.784-798

Document Type: Article

Publication Date: 2/2020

Document Language: English

Document ID (Org No.): 2000733223

Frequency: Bimonthly

eISSN: 1303-6203

pISSN: 1300-0632

DOI: https://doi.org/10.3906/elk-1904-201

Issues

Authors:

Uğur YEŞİLYURT | İhsan KANBAZ | Ertuğrul AKSOY

Publisher:

TUBITAK

Journal:

Turkish Journal of Electrical Engineering and Computer Science 2020 Vol.28 Issue 2, pp.784-798

Document Type:

Article

Publication Date:

2/2020

Document Language:

English

Document ID (Org No.):

2000733223

Frequency:

Bimonthly

eISSN:

1303-6203

pISSN:

1300-0632

DOI:

https://doi.org/10.3906/elk-1904-201