Description: Note This kit is listed multiple times on eBay, with a description which includes the manufacturer of the VNA. For example, all of the following either exist, or will exist on eBay shortly. 7 - 12 GHz SMA Calibration Kit for Anritsu VNAs7 - 12 GHz SMA Calibration Kit for Copper Mountain VNAs7 - 12 GHz SMA Calibration Kit for HP, Agilent and Keysight VNAs7 - 12 GHz SMA Calibration Kit for LA Techniques VNAs 7 - 12 GHz SMA Calibration Kit for LibraVNA 7 - 12 GHz SMA Calibration Kit for PicoVNA7 - 12 GHz SMA Calibration Kit for Rohde & Schwarz VNAs 7 - 12 GHz SMA Calibration Kit for Tektronix VNAsThis ensures that when people search for a calibration kit for a specific VNA, they will find it. All the eBay listings are identical kits. This kit can be used with Anritsu, Copper Mountain, Rohde and Schwarz etc VNAs too. The Kirkby Microwave website has support pages specific to VNAs from these and other manufacturers. Introduction.Despite being a precision instrument, a vector network analyzer gets most of its accuracy from the calibration kit. A good calibration kit, in good condition, is essential for accurate use of a Rohde & Schwarz VNA, as is true for any VNA. This is true for both phase and amplitude measurements - it is wrong to assume that a calibration kit is not needed if only magnitude measurements are needed. Accurate electrical models are needed of the opens and short circuits, as the assumption an open is a perfect open, and a short is a perfect short, as described in most textbooks, is incorrect. A number of eBay sellers sell low-cost calibration kits, but these are effectively useless, as they don't have the mathematical models of the opens and shorts necessary to load the constants into a VNA, and do not have anywhere near the optimal phase difference between open and short, which is 180 degrees. This is an SMA calibration and verification kit, than depending on the specification selected, can work to a maximum of 7, 10 or 12 GHz. It will work with any R&S VNA. (In fact, the kit will work with almost any VNA, including all models from HP, Agilent, Keysight, Anritsu, Tektronix etc). We supply data files suitable for almost any VNA on a USB stick. The full S-parameters of each device in the kit. IThe will work with any Rohde and Schwarz vector network analyzer. The coefficients are supplied in a human-readable format that can be used on any VNA. 2-port UOSM (Through - Open - Short - Match). This is the most accurate calibration for 2-port devices, but will not work on some older VNAs. The kit supports the following calibration types on Rohde and Schwarz VNAs. 1-port measurements using the Short, Open, and Match standards. 2-port USOM - using the Short, Open, Match and and Through calibration standards. This is most accurate, as it does not require any parameters of the through to be known. 2-port TSOM - using the Short, Open, Match and and Through calibration standards. This is a little less accurate, and takes longer to calibrate than when using UOSM, but can be used on older VNAs. 2-port, one path The design of this kit is vastly superior to that of other cheap calibration kits sold on eBay and elsewhere. Using a combination of Accurate physical measurementsComputer simulations with a 3D EM modeller,Design and testing by a chartered engineer with a Ph.D. Each kit individually calibrated, with all the measured data supplied to the user. this kit achieves an accuracy suitable for the vast majority of professional applications. The kit is available with a maximum frequency of 7, 10 or 12 GHz. There's no minimum frequency. A number of options are available for the kit. Contents of the standard kit, with no options supplied. Case, with CNC milled foam insert. The insert is cut to take any option on this auction. Male short, with the offset length, offset loss, and inductance coefficients L0, L1, L2 and L3. These must be entered into the VNA following the instructions in the manual - we can provide assistance. Male open, with the offset length, offset loss, as well as the fringing capacitance coefficients C0, C1, C2 and C3. Again these must be entered into the VNA for the calibration to work properly. Male match (also called load), with resistance, offset length and offset loss. Female short, with the offset length, offset loss, and inductance coefficients L0, L1, L2 and L3. These must be entered into the VNA following the instructions in the manual - we can provide assistance. Female open, with the offset length, offset loss, as well as the fringing capacitance coefficients C0, C1, C2 and C3. Again these must be entered into the VNA for the calibration to work properly. Female match (also called load), with resistance, offset length and offset loss. An attenuator, with one male and one female connector, complete with measured data. The data is measured on an HP 8720D VNA with 85052B 3/5 mm cal kit. If you set up the VNA, then measure this verification standard, you will have confidence your kit is set up properly. Male-Male adapter with measured electrical delay, to help in making measurements on non-insertable devices. (This is unnecessary if the VNA supports UOSM calibration.) Female-Female adapter with measured electrical delay, to help in making measurements on non-insertable devices. (This is unnecessary if the VNA supports UOSM calibration.) USB stick with data on it on the measured attenuator, as well as S-parameters of the calibration standards, all the coefficients. A very high quality Peli 1060 case, which is waterproof and dustproof (IP67 rated). This is usually supplied in black, but sometimes yellow. If the colour is important to you, then let us know as a message to the seller. Optional Extras. The kit can be supplied with up to additional options. Due to limitations in the eBay menu system, we can't list every possible combination of 7 options that can be ordered. However, we have listed 3 sets, in addition to the maximum frequency. No additional options. You must have a 4 lb inch (0.48 Nm) torque wrench to use the kit properly, so only chose this option if you have a suitable torque wrench. Do not use a 8 lb inch (0.98 Nm) torque wrench on SMA connectors. With a suitable torque wrench. With every possible option, including the torque wrench. For other combinations of options, please let us know what option(s) you require, and we will create a listing specifically for you.The options and their costs are below. The option numbers follow those on the Kirkby Microwave website. Option 001 RP. (reverse polarity) SMA adapters with a measured electrical length. This is a low-cost option, and desirable if you work with consumer electronic items like WiFi antennas, routers and modems with wireless connection. The electrical length of the adapters is given. For pure return loss/ VSWR measures, just connect these and take the results. (If you need vector measurements, then you will need to compensate with port extensions, using the data given on the electrical length.) This option adds £35 to the price. If you want this option, but not every option, then please contact us, as it's not possible to buy this option on eBay, unless you buy every option. We can create a listing with the exact option(s) you require. Option 002 - adds a pair of SMA to long life, low-retention force U.FL adapters. These have a lifetime of 500 connections and disconnections, which is considerably more than standard U.FL adapters, which are designed for 20 connections and disconnections. SMA female to U.FL female.SMA male to U.FL male. These U.FL adapters have a measured electrical delay, so their effect can be compensated for by port extensions, moving the reference plane, or whatever else your vector network analyzer calls such a procedure. The delay is given with the other parameters of the kit. Note the lifetime of U.FL connectors usually is about 20 matings, but the low retention force adapters have a long life and have the same 1-year warranty as the rest of the SMA calibration kit. This option adds £88 to the price. If you want this option, but not every option, then please contact us, as it's not possible to buy this option on eBay, unless you buy every option. We can create a listing with the exact option(s) you require. Option 003 - adds a pair of SMA to MMCX adapters, with measured electrical length. Both male and female MMCX adapters are provided. This option adds £89 to the price. If you want this option, but not every option, then please contact us, as it's not possible to buy this option on eBay, unless you buy every option. We can create a listing with the exact option(s) you require. Option 004 - adds a highly recommended 0.45 Nm (4 lb inch) torque wrench. This is suitable for all SMA connectors. (Higher torques can be used under certain circumstances, but 4 lb inch gives a reliable connection for use in a laboratory. For a permanent connections, with all stainless steel connectors, a higher torque can be used, which will reduce the risk of connections coming lose if subjected to vibration.) Since this is a popular option, you can buy the kit on eBay with this option. Option 022 - adds an attenuator for verification purposes which has two female connectors.This aids verifying the correct calibration when both the connectors on the test port cables are male, which is a very common occurrence. This option adds £75 to the price. If you want this option, but not every option, then please contact us, as it's not possible to buy this option on eBay, unless you buy every option. We can create a listing with the exact option(s) you require. Option 023 - adds an attenuator for verification purposes which has two male connectors. This aids verifying the correct calibration when both the connectors on the test port cables are female, which is a lot less common than having male connectors on each cable. This option adds £73 to the price. If you want this option, but not every option, then please contact us, as it's not possible to buy this option on eBay, unless you buy every option. We can create a listing with the exact option(s) you require. Other optionsThere are some other options, that are only of use to users of older HP and Agilent VNAs. These are not listed here, but are available. Specifications. Return loss of the match is: >= 32 dB up to 7, 10, or 12 GHz. Higher frequency kits are more expensive. Pin & dielectric depth All devices are checked to ensure both the pin and the dielectric are not forward of their correct positions. A Maury Microwave A028A connector gage set is used for this. Typical depth -0.0025" (-0.06 mm) Allowable depth 0.000 to -0.010" (0 to -0.25 mm) Phase difference from open to short. The ideal difference in phase between the open and short is 180 degrees, but in practice it is not possible to achieve this due to the non-linear fringing capacitance of the open calibration standards. However, the design of this kit is such that the difference in phase between the male opens and shorts stays within 11 degrees of the ideal 180 degrees. In summary, this is an economical calibration kit, far below the new cost of those from Rohde and Schwarz, and suitable for all amateur and most professional use. It will not be quite as accurate as a new and expensive Rohde and Schwarz kit, but it is a lot cheaper, and will be more accurate than many used kits, as used calibration components are usually damaged. The kit also includes an attenuator for verification, which the Rohde & Schwarz calibration kits do not. This kit is infinitely superior to the cheap junk cal kits sold on eBay and elsewhere. Shipping Kits are shipped with a decent courier - usually FedEx or UPS. Ignore the international delivery times given by eBay, as it will be faster than they say to most locations. The shipping charges depend on delivery address. Please supply us a telephone number for the courier. Note, neither Fedex or UPS will not deliver to post office (PO) boxes - we must have a proper address to ship the kit to. Dr. David Kirkby B.Sc M.Sc Ph.D Director, Kirkby Microwave :Ltd.
Price: 518 GBP
Location: Essex
End Time: 2025-02-05T15:08:59.000Z
Shipping Cost: 78.99 GBP
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Item Specifics
Return postage will be paid by: Buyer
Returns Accepted: Returns Accepted
After receiving the item, your buyer should cancel the purchase within: 14 days
Country/Region of Manufacture: United Kingdom
MPN: 85033
Brand: Kirkby Microwave
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