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Admin

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  1. Triton_Mgn says,,, Good afternoon, give the antenna a good antenna for the 1800 MHz mimo Found 2 antennas on the forum: 1 - http://www.lan23.ru/forum/showthread.php?t=12671 But, unfortunately, not its size at the desired frequency, tell me who knows. 2 - http://www.lan23.ru/forum/showthread.php?t=10879 Could you tell me the thickness of the disc, can I use galvanized? In the drawing, the antenna of this size for the lower frequency 1747,5 pink color, and upper 1842,5 green. Why, then, in the drawing there are dimensions in blue? My answer is,, it can build a patches antenna instead of a disks, a horizontal patch antenna group (at one end of the frequency band) and the other group with vertical polarization (at the other end of the frequency band)
  2. The BAS-2346 FLAT MINI MIMO antenna is designed for equipment operating in the frequency range of 690-960 MHz / 1800-3600 MHz and having ports for connecting external antennas with MiMo support (Multi input multi output) The antenna is connected by two 5-meter-long RG-58A/U cables with SMA connectors. If necessary, the cable can be extended in the same way as the wave one with a resistance of 50 Ohms. You may need an SMA-CRC9 adapter (TS9, FME, etc.) to connect to the hardware.Adapters and an additional cable are purchased separately. The antenna can be mounted on a mast with a diameter of 20 mm to 50 mm or on a wall bracket. A distinctive feature is the extended frequency range, including 3.5 GHz. The location of the antenna:Outer Supported communication standards:GSM (GPRS/EDGE), 3G (HSPA/HSPA+/WCDMA), 4G (LTE800, LTE1800 LTE2700, WiMax) Operating frequencies, MHz:690-960 MHz / 1700-2700 MHz /3400-3600 MHz Gain factor, max., dBi:7dB / 12dB / 7dB The standing wave ratio on voltage not more than:1.5 Wave resistance, Ohms:50 Cable length, m:5 Connector type:2 x SMA Overall dimensions (without mounting unit), mm:160x170x75 Weight, not more than, kg:1 Package dimensions, mm:175x215x100 Package weight, kg:1.1
  3. This page details the construction of a biquad antenna. The biquad antenna is easy to build, and provides a reliable 11dBi gain, with a fairly wide beamwidth. an antenna geometry of ideal biquad...
  4. Main technical specifications 1. Frequency Range: 2400MHz 5G 5800mhz 2.VSWR:<= 1,5 3. Gain: 10 dBi (max.) 4. Vertical polarization 5. Maxlmum Input Power: 50W 6. Connector Type: RP-SMA plug/SMA plug 7. Length: 19.5 cm 8. It is widely used for wireless transmitter and wireless receiver. Such as AP, WLAN ,WIFI router, WIFI adapter. 9. Advantage: Nickel-plated has excellent quality in solubility, conductivity and stability in metal. 10. It has two colors, you choose black or white. Thanks.
  5. Single band IEEE 802.11 a/n standard High gain patch antenna Frequency (MHz) : 5150-5825 Peak Gain (dBi) : 10.0 VSWR : 2.0 : 1 Dimension (mm) : 76 x 72 x 3.8 Connector : IPEX MHF I Cable Length (mm) : 50 (customized) It seems to work well on the 5.6 GHz frequency.
  6. ,,, type of antenna,not very easy to produce , but with good results in circular polarization. Between the patch and irradiated put plate of polystyrene or polyurethane...
  7. After an idea of Vman... Sector Antenna 2442mhz.cst
  8. Product detailed description SMA-male 11dB circular polarization antenna The 11dBi circularly polarized antenna is a High-gain circularly polarized directional antenna. It is suitable for low-altitude crossing and long-distance flying. In actual use, adjust the inclination angle of the panel antenna appropriately. In the state of flying with the head down, the antenna is perpendicular to the ground. Specifications: Frequency: 5.6G Gain: 11dBi Bandwidth: 5500-5800MHz Size: 82mm x 42mm x 24mm Package includes: 1x SMA-male 11dB circular polarization
  9. Double Patch Regular Polyhedron The rectangle 94*68 mm, the sides of the cutting plane 28 and 16 mm rack Diameter 6 mm. each patch has an input impedance of 100 Ohms, between 0.5 *Lambda of the connecting line. Obtained by parallel connection of 50 Ohms. And cool chart SWR the broadband is a patch in the form of an pseudo- ellipse with eccentricity 0.8, 2 Patches of narrow-band, but with the increase of the gap band of operating frequencies increases at 0.1 Lambda reaches 10/11 %. When band gaps, increases the ability of multi-mode excitation. With the increase of the gap increases and the value of the input impedance. Based on this information, can built a patch with a gap from the reflector is 15 mm. The line length is 0.5 L, so its width is not critical. In this project its width is about 2 mm d = 1 mm The gap( between the surfaces) 15 mm width to reflector Conn. line 13 mm. the distance between the two coherent emitters choose, usually based on two criteria. Or the maximum gain, then it's 1 lambda or a little more. Or at a minimum side lobes, then it is less than lambda, about 0.7/0.8.
  10. Waveguide slot antennas are a type of microwave antenna that use a hollow metal tube, called a waveguide, to transmit and receive electromagnetic waves. They have slots cut along the length of the waveguide, which act as radiating elements. Waveguide slot antennas have some advantages over other types of antennas, such as high efficiency, low loss, and wide bandwidth. Single Sided 8 Slots Waweguide...41x20x360mm....
  11. We've shared tons of ways to boost your home Wi-Fi, but if you need something a bit more powerful, this DIY antenna can stretch your wireless network much further. Simply use this sardine cane box from which the cover is used for patch antenna... This box is ideal for the construction of antennas in the 5 GHz band and beyond...
  12. Hello everyone.Here are proven horns for offsets at 5.4 Ghz offset 60cm . horn5,4ghz.cst
  13. Bottom of a circular metal box can build a simple antenna with an elliptical radiator...
  14. It was interesting to design a small and lightweight antenna from available materials for FPV. After looking at what is available in household stores, I decided to stop at zinc/brass for the antenna elements and a canister cover as a radom. And so everything is in order - as it seemed to me, a lid from paint cans / mounting foam / air fresheners is perfect for radom. Its diameter is 77 mm external and 84 mm internal. Height from 12 to 40 mm. Material-polypropylene. Based on this, the dimensions of the entire structure were selected. you will need brass / galvanized 0.25 mm thick, brass tube diameter 4 mm external (wall thickness 0.25 mm), screw m3 -40 mm. cap nut m3, SMA connector, pipe cutter, metal scissors, drills with a diameter of 1.4 and 3 mm. The reflector is made of sardine cans. General view of the structure and results:
  15. The KP20-5500 antenna is used in 4900-6100 MHz transceiver systems. The antenna is designed for use in wireless computer networks of Wi-Fi standards IEEE 802.11 a/h/n, as well as in alarm systems, radio communication, etc. Dimensions (length, width, height), mm 200 x 200 x 120 Dimensions, weight, and quantity of the product in the package: Dimensions of individual packaging (length, width, height), mm 215 x 215 x 90 Weight in individual packaging, grams 1050 Number of products in a group package, pcs 12 Antennas-characteristics : Operating frequency range, MHz 4900-6100 Antenna gain, dBi 20 VSWR in the operating frequency range, not more than 1.6 Polarisation Linear Wave resistance, Ohms 50 Maximum input power, W 50 Connector N- female SMA-female Allowable wind load, m/s 30 Operating temperature range, oC -50 … +90 Maximum permissible air humidity, % 100 Communication Standard WiFi 5GHz Mounting type on the pipe Execution type Panel version MIMO Support No ,,,and I still tried to simulate this antenna....!!!!
  16. This panel rectangular 4+4 patch antenna can also give you better performance because of its high peak gain of 19dBi. {recommended for drone tracking antennas} overall dimensions=120x200x10mm The antenna patches are suspended on a polystyrene dielectric...
  17. Antenna KATHREIN production are not only exceptional electrical characteristics. Special attention is paid to the mechanical characteristics of the antennas.
  18. This yagi style printed circuit board antenna gives great performance from 2400 to 2450 MHz. This range is commonly used for wireless systems 802.11b/g, RFID systems, satellite dish antennas, dish feeds, and beacons. This can also be easily applied to other hobbyist applications in this range.
  19. A method to improve the gain of axial-mode helical antenna is proposed. This method involves a parasitical circular metal disk,which is installed on the front of general axial-mode helical antenna and is apart from the helical line. A circular current whose phase lags behind that of helical line current appears,which brings a more concentrated radiation field. Consequently,the antenna gain is improved, Based on the simulation results,an antenna array model fed independently is proposed.This model gives an excellent explanation of the radiation characteristic of helical antenna, Both the simulation and experiment results show that for obtaining the same gain,the antenna length in this new method is only 71% of that in traditional helical antenna.The reduction of antenna length favors the miniaturisation of antenna. In addition, this method has a little effect on the bandwidth of antenna, so it can be widely used in the design of helical antenna element and array.
  20. Is a Russian patch-antenna for its positioning in the focus of a parabola offset... Antenna is broadband (2.3-2.7GHz) Bester Antenna on the offset dish It has a elliptical polarization antenna.
  21. Because this site is not completed in real operation, it is recommended to replace the current Theme2(Default) with Default, as you can see in the picture below... Default theme it looks like this...
  22. There are two types of antennas, RHCP, and the LHCP. Don’t be overwhelmed, it’s easy, we’ve outlined the basics below. RHCP antennas are known in full as Right Hand Circular Polarized antennas. LHCP antennas are known in full as Left Hand Circular Polarized antennas. Sometimes, they are both known simply as Circular Polarized (CP) antennas. Due to its polarized nature, this type of antenna will reduce any radio interference by a process known as multipathing. This blocks out unwanted radio signals and can give a much cleaner signal. For which below I was looking to do a simulation of the antenna after the Iulian Rosu site ... ??? https://qsl.net/va3iul/Antenna/Printed_and_Microstrip_Antennas/Design_Ideas_for_Printed_and_Microstrip_Antennas.htm
  23. I followed this forum and tried to do a simulation for this frequency (L-band 1500-1700 MHz)....for last mystery of maritime communication-satellite Inmarsat!!! https://www.radioscanner.ru/forum/topic50990-11.html
  24. Antenna 20-Series NOBICOM high – tech product, designed to work in the toughest conditions. The antenna works most effectively in buildings of low and medium density, which reduced the effect of multiple reflections of the signal. In such conditions, the MIMO technology does not give the desired effect, and the cost of the two polar antenna is not justified. The package includes a fixing rotary device for mounting on bracket or mast. operating frequency range, MHz - 1900-2700 Gain, dBi 17-20 days Width in H-plane, degrees - 13-15 days Width in E-plane, deg - 13-15 sidelobe not more than-12dB Isolation between ports, not less than - 35dB Input impedance, Ohm 50 VSWR in operating frequency range, no more - 1,5 Permissible power W - 50 Polarization vertical/horizontal Weight, the kg - 3.2 Mount - mast/bracket diameter 20-52mm dimensions, cm - 45х45х6 Allowable wind speed, km/h - 20 Connectors antenna SMA-female x 2 Connectors adapters (included) - N-male - CRC9 or N-male - TS9 Material protective cover - ABS plastic with UV protection antenna Material - galvanized steel fastener Material - steel screen Material - steel Protective coating - polymer powder paint Length of USB cable, m - 10