This antenna is nice because it can be mounted directly to a video receiver such as fatshark goggles or a ground station. The backing to the antenna ground plate is made from acrylic left over from another project. One other idea i had was just using a discrete port right on the antenna feedpoint, so that i do not have a transmission line to the antenna. Setting up a port for a microstrip transmission line is a bit complicated. What results is an elipse for a polarization pattern. This antenna operates in the 56455945mhz frequency band with a high gain and a low vswr, is of a co. Mar 03, 2017 receiver antenna gain this is the most customizeable radio feature an rc hobbiest has at his disposal. Designed and simulated by cst computer simulation technology.
What is the difference between a waveguide port excitation. How to find impedance at edge of a microstrip patch in cst. Oct 24, 2007 here is an example of an artificial ground plane added by someone to an 8 dbi 2. Its not just the antenna that you can fly the furthest on there is far more to it than that. If you continue browsing the site, you agree to the use of cookies on this website. Its very hard to decide what the best antenna actually is. The new aomway circular polarized patch antenna is the latest in the aomway line. Dec 23, 2010 the problem is that the antenna still retains most of its linear capabilities and only skews the pattern slightly. There are a few patch antenna variants on the market that you can mount to your goggles we encourage you to look around. Build your own drone, suppliers of drones and uav parts, kits and accessories for your drone racing quadcopter and ready to fly drones. Tbs triumph rpsma rhcp 2pcs tbs unify pro 5g8 sma pigtail u. Do i get the same s11 results using discrete port and waveguide port.
Antenna gains of up to 16db equivalent to 40x output power. These type of antenna are great for fpv, this one operates at a 3540 degree angle which gives excellent coverage at normal operating distances. Light enough to be mounted directly onto an lcd headset, or directly onto the front of one of our uno, or duo receivers. Its goal is to offer the base rigidity to the ground plane and antenna in general, as well as offer a means to provide pivot and angle adjustment. The tagline of dronesvision is out of sight, not out of mind. Patch antenna ground plane increase performance wireless.
Microstrip patch antenna with coaxial feed using cst mws part 1. The aspect ratio of means the ratio of the width to length of rectangle of wave port. This is very good for when you have a linear tx antenna as you will have about 12db loss instead of 3db when up right and about 56db loss in a 90 degree bank. The ground or reflector seems to be about 12 inches square, as the 8dbi patch is 4. The antenna has a wider angle than the helical long range antenna, but at the expense of a little gain reduction. Immersion rc spironet 8dbi mini rhcp right hand circular. I see lots of people using the immersionrc spironet 8db mini patch or truerc xair 10db crosshair, whats the consensus on here for best antennas for. How to add a phase shift in antenna element using cst. The antenna had to interface with a 50 sma connectorization and be fabricated entirely from circuit traces, metal components, and solder. The guy that made this claims a great signal improvement with this. Do i get the same s11 results using discrete port and. My suggestion is to remove the power divider and then feed each antenna of the four antennas with a discrete port separately, hence you can do the beam steering.
Join the facebook group and discuss your problems with others. To have accurate results, its important that you use a. Each antenna was tested in controlled conditions and the results have had a large impact in what i deem to be top 5 best fpv antennas. He said it is 12 inch behind the patch mounted with insulated plastic. Correct transmitter antenna for patch receiver antenna 1. I want to design a patch antenna b y using cst software but i am facing a problem with boundaries conditions. Its light enough to be mounted directly onto an fpv headset or onto the front of one of immersion rc uno or duo receivers. Microstrip patch antenna with coaxial feed using cst mws. The use of slotted patch reduces the size of antenna and higher bandwidth, which is the area that can be improved with the proposed design. Rectaangular microstrip patch antenna for wireless.
Sep 19, 2011 this tutorial shows how to set up a waveguide port of a microstrip patch antenna in cst microwave studio 2010. With this high gain 14dbi patch antenna, it really helps you get your wireless video signals from way out of sight. You can also have a cst discrete port that has uniform current density between two edges and. The performance parameters were achieved with return loss 16. This series of antenna are great suitable for fpv, this one operates at a 3540 degree angle which gives excellent coverage at normal operating distances.
Discussion correct transmitter antenna for patch receiver antenna 1. Transmitter antenna gain similar to rx antenna gain, this is a very easy factor to tweak. Hi, i am currently working on a project which i need to design a probefed type circular patch antenna using cst mws please see the attachment. In the real world, i would calibrate a vna on the actual antenna feed point, or use port extension, but i do not see these options in cst studio. Helical and patch antenna are directional antenna and they provide longer range but smaller angle of reception. Pair with an uno5800 an ideal match, the spironet 5. Discussion circularpolarized patch antenna for 5,8 ghz fpv talk. In this article we will talk about helical antenna and patch antenna for fpv. Mount the uno directly on the back of the patch to eliminate cable losses, and for a dream system, guide the antenna using the new ezantennatracker v2. Apr 15, 20 39 videos play all antenna design cst tutorials tensorbundle cst mws tutorial 04. Implementation of a square patch antenna feeding by a.
If you want to design a patch to operate on dominant tm10 mode, you must choose a discrete face port with a width equal to the patchs width. The following are the result of simple microstrip patch antenna and cst mws tutorial 04. Circularpolarized patch antenna for 5,8 ghz rc groups. This antenna operates in the 56455945mhz frequency band with a high gain and a low vswr, is of a compact design and the antenna stem can be bent to any angle and will then stay there. Jun 01, 2015 design and simulation microstrip patch antenna using cst microwave studio slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. What is the difference between a waveguide port excitation and a plane wave excitation in cst. Immersion rc spironet patch antenna for long range 5. Design and simulation microstrip patch antenna using cst. I am trying to simulate the s11 parameter of the patch antenna but i do not know how to model the coaxial feed which is connected underneath the patch since i need to define a waveguide port for it. Custom designed for the fpv market, it pushes the limits of range on 5. Microstrip square patch antenna using cst by shamsur rahman akash. This video shows how to make a differential port in cst microwave studio. Jul 25, 2009 the 900mhz patch antenna is a common arrangement, as described in the rccam site. Now that the furious trued v3 is out, im gonna make the jump to diversity and wanted some advice on patch antennas to go alongside my trusty tbs triumph.
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