232 m (elevation) in size. Brand new antenna includes 1536 shown-found channels, that are structured when you look at the twenty-four articles (azimuth) and you will 64 rows (elevation), and you will marketed over cuatro boards.
The power of the whole antenna is supplied of the one or two APUs (Antenna Energy Products), hence dispersed an electrical energy bus so you’re able to five antenna panels and you may handle the fresh aperture setting by enabling or disabling the direct-current (DC) converter during the each committee.
The Antenna Interface Product (AIU) regulation all of the antenna beam creating and you can steering functions getting instructions from the electronic devices subsystem, interpreting the instructions, and publishing the new beam control orders so you can four boards throughout the sort of data bus. The fresh new stage and acquire configurations of all of the elevation beams, and 205 best-looking and 205 remaining-looking beams, are kept in AIU. New AIU obtains the newest stage and you will gain settings of one’s azimuth steering beam as into the-orbit formula.
Transmitting Get and you will Circulator Units (TGCU) amplify the newest providing signals obtained regarding electronic devices subsystem to push the fresh new antenna, receive indicators from the antenna, and you can upload these to the fresh new electronics subsystem. Circulators are involved to split up the latest giving and receiving pathways interfacing to your electronics subsystem. A couple of TGCUs are widely used to drive and you may discover throughout the antenna to own H and V polarization respectively.
The newest 1:thirty-two divider is put amongst the TRM calibration harbors additionally the column calibration port so you can dispersed otherwise blend H and you may V interior calibration signals
Whenever giving, brand new rule waveform is actually increased of the Radio frequency (RF) stamina amp and you can split up by the a 1:2 divider inside TGCU to push the H otherwise V polarization antenna. Your selection of giving polarization can be easily applied from the helping the newest relevant amplifier based in TGCU. The fresh polarization set of antenna panels from the timing control is even necessary as it can raise the fresh mix-polarization separation.
The new H or V polarization indicators gotten in the An effective and you will B panels is actually shared, named HAB or VAB, immediately after which put into a few indicators, so you’re able to mode redundant RF paths to improve the system precision, along with signals about C and D panels
An electrical block drawing of a single antenna committee is provided with from inside the Profile 15. At committee height, RF interconnection within articles as well as the rest of the radar exists of the about three the same 1:six energy dividers. The brand new handle bus and you will strength coach are distributed of committee harbors so you’re able to half a dozen line segments.
New antenna is actually a beneficial modulated construction you to definitely represent a column once the a fundamental component, having its you to definitely Line Software Tool (CIU), you to definitely Line Electricity Unit (CPU), 7 Time-delay Devices (TDU), 16 Transmit-Discovered Modules (TRM), 32 dual-polarization radiators, three-power dividers, together with elevation plane delivery network.
In the column component top, one or two step 1:4 and one 1:thirty-two strength dividers are widely used to user interface with the rest of the antenna panel on the RF path. The latest step one:4 divider directs H otherwise V indicators with the TDU getting transmission, and you will combines the fresh acquired indicators in the TDU slots into the H otherwise V yields column RF harbors.
Five Transmitted-Located (TR) streams are stuck in one TRM with just one to interface having the TDU. Per spot radiator possess H and you will V nourishes, that are completely independent on shipping and you will laws reception, and you can links that Baltican kvinner have several TR channels inside H and you can V polarization, correspondingly.
Good waveguide slot radiator is employed to attenuate get across polarization and you will raise rays abilities. The selected row spacing of the radiator permits the fresh new antenna which have a beneficial ±20° scanning position from inside the elevation without fun grating lobes, that’s enough and you may very important to within the lookup position needs by twelve watching modes, specifically Age form. Although not, line spacing of radiator is tough to match brand new strict requirements out of lower grating lobes in the case of good ±1.9° learning direction from the azimuth called for by P form. Luckily for us, new grating lobe can be kept out-of extracting inside azimuth ambiguity by choosing the right PRF.