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Abstract

Millimeter-wave (mm-wave) transmitters are often fabricated using advanced technology and require a sophisticated manufacturing facility. Access to such technologies is often very limited and difficult to gain particularly at the initial stage of research. Therefore, to increase the accessibility of mm-wave transmitters, this study proposes a design that can be assembled in a standard microwave laboratory from commercially available or externally ordered components. The transmitter demonstrated in this paper operates above 100 GHz and is based on a lowtemperature co-fired ceramic board in which the antenna array, microstrip lines, and power-supply lines are fabricated in a single process. Different technologies are used to assemble the module, e.g., wire-bonding, soldering, and wax adhesion. Advantages and disadvantages of the proposed design are given based on experimental evaluation of the prototype. Although the performance of the developed transmitter is not as good as that of the similar modules available in the recent literature, the results confirm the feasibility of a mm-wave transmitter that is assembled without employing advanced technologies and superior machinery.
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Authors and Affiliations

Paweł Bajurko
1
Jakub Sobolewski
1
Grzegorz Bogdan
1
Konrad Godziszewski
1
Jacek Marczewski
2
Jan Kulawik
2
Michał Widlok
3
Yevhen Yashchyshyn
1

  1. Warsaw University of Technology, Institute of Radioelectronics and Multimedia Technology, Warsaw, Poland
  2. Łukasiewicz Research Network, Institute of Microelectronics and Photonics, Warsaw, Poland
  3. SIRC Sp. z o.o., Gdynia, Poland
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Abstract

This paper discussed the results of pilot magnetic investigations carried out at the foot of the Fugleberget mountain and in the Skå valley in the area of the morthwestern shores of the Hornsund Fiord. The investigations showed the large usefulness of the magnetic method in stratification of different rock types which occur within the metamorphic complex, and, in the case of magma intrusions, they found that dolerity dykes are characterized by high, uniform magnetization and very simple geometrical form.

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Authors and Affiliations

Andrzej Koblański
Stanisław Małoszewski
Janusz Śliz

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