V.H. Avetisyan, M.V. Markosyan, A.A. Hovhannisyan, S.G. Eyramjyan

1. Testing methodology // Reports of National Academy and the State Engineering University of Armenia. Series of Technical Sciences,- 2007y. – Vol.60, №3, — Page 516-522.

The methodology of active phased array module testing is suggested. The module consists of four elementary receiving-transmitting cells, each of which contains an electronically controlled attenuator and phase shifter, power amplifiers, low-noise amplifiers and radiator, parameters of which are tested sufficiently simply by the suggested methodology.

M.Markosyan

Bulletin, — YSUAC, — 2007,- №2

The article examines issues of management of water systems, study and interpretation of the existing problems, as well as issues of automation of management. Issues of operation of water systems are viewed and the necessity of automation of the counting of water consumption are demonstrated as basis for organization of operation of the systems. Whit the help of simple calculations, the procedure of detection of places damages and leakages. Requirements for engineering systems of provision of automation of the water system management are brought in. A solution of the issue of automation through up-to-date communication systems is offered.

Patent №2022A2, Republic of Armenia, 2007

M.Markosyan, S.Eyramjyan, A.Hovhannisyan, V.Avetisyan

Invention concerning to antenna technique and may be used for full testing of transmit-receive modules, which include in active phase array antenna AAPA of radiotechnical systems of different functions. Goal of invention — increasing of testing level of AAPA transmit-receive module. Device determines attenuation discrete and intervals inserted by controlled attenuators of each transmit — receive element of module, discrete and intervals of phase shifts inserted by the same phase -shifters, dispersions of complex transmitter element characteristics in signal receive and transmit modes, and polarization characteristics of waves radiated by module elements.

M.V. Markosyan, V.H.Avetisyan

Radiotechnika, — 2006, — №12, — p.59-64 (in Russian).

A designing of radio-measurement circuits, which are the parts of the antenna complex near-field automatic measurement systems of short millimeter waveband, are discussed. In the offered circuits the quadrature processing of a useful signal is used with account of an analysis of centimeter waveband similar radio-measurement circuits.

Suren Eyramjyan

Mediterranean Microwave Symposium ,14-16 May 2007, Budapest, Hungary

An active phased array (APA) module testing methodology and corresponding construction of apparatus complex for its realization are suggested. The complex permits to test module’s cells parameters, including testing of APA radiation elements polarization characteristics.