# Design equations of slot antenna

diy - Slot antenna for 2 meter mobile - Amateur Radio Stack ... Would that be better than just cutting the slot into the bars? I can't find out if that's very directional, I assume I'd cut it in the top and use weep holes, cheapest option. As per previous answer, the design is much more complex. (and) Yes, a slot antenna is a directional antenna which is not suitable for mobile use.

connected to one side of the slot, and the outside conductor of the cable - to the other side of the slot. – The slot length is some (λ/2) for the slot antenna and (λ/4) long for the INF antenna. • The INF and the slot antennas behave similarly. • The slot antenna can be considered as a loaded version of the INF antenna. Open Access Coaxial Slot Antenna Design for Microwave ... slot spacing length corresponds to 0.25 eff, and 0.125 eff respectively, that was chose to achieve localized power deposition near the slots of the antenna. Nevertheless, due the catheter and its thickness also affect the performance of the antenna, according to [10], equation 4 only provides an inaccurate approximation for the design. What is the difference between slot antenna and patch antenna ... Slot antennas are easier to make and modify, though patch antennas can be nearly as cheaply made using printed circuit board production lines. Slot antennas can send much more powerful signals. You can build a slot antenna into a structure and put it somewhere others may not know it is. The Pros and Cons of Slot Antennas

## Design of Frequency and Polarization Tunable Microstrip ... slot with an embedded capacitor at the center of X-slot. Design equations of the antenna are developed and ...

1 Answer. The impedance of the slot antenna () is related to the equivalent dipole () by: where is the impedance of free space, about 120πω. So if the impedance of a long, thin, half-wave dipole is about 72ω, then a long, thin slot has an impedance of about: If the slot is made wider, this is equivalent to making a dipole thicker,... Microstrip Patch Antenna Designing at 2.4 GHz Frequency The length of a ground plane (Lg) and the width of a ground plane (Wg) are calculated using the following equations [7]: 𝐿𝐿𝑔𝑔= 6ℎ+ 𝐿𝐿 (5) 𝑊𝑊𝑔𝑔= 6ℎ+ 𝑊𝑊 (6) For feeding the microstrip patch antenna, there are different methods for example, feed line method, coaxial probe feeding method etc. An Introduction of Aperture Coupled Microstrip Slot Antenna

### Method of Moments (MoM) technique. Resonant length calculation of the slot is a critical parameter in the design of waveguide slot array antenna. All computed results are compared with simulated results. CST Microwavestudio is used for the simulation and is totally based on FIT techniques. For computation purpose MATLAB 7.0 is used. The

Loop and Slot Antennas. Prof. Girish Kumar. Electrical Engineering Department, IIT Bombay gkumar@ee.iitb.ac.in. (022) 2576 7436 ... Design of Circular Micro strip Patch Antenna with different Slots for ... different Slots for WLAN & Bluetooth Application ... microstrip antenna,these slots are square rectangula ... lified equation following design equation to design. A compact CPW fed slot antenna for ultra wide band ... - CiteSeerX