CLASS INPUTS by sara wanan

high voltage transformer

2023-02-27 16:10:25 UTC

These transformers are installed at relay points in the transmission of electricity produced at power stations to consumers (such as households and factories).
Microwaves require a high voltage of electricity to thoroughly cook food. They typically need between 3,000 and 4,000 volts. Because most microwaves are plugged into 120 volt electrical outlets, they require a transformer to alter the power level and provide the necessary voltage. The high voltage transformer uses capacitors that loop electrical currents and multiply their power, supplying the microwave with the voltage it needs to function.

Nizamyuu

Types of transmission lines

2023-02-27 16:16:52 UTC

- Overhead Transmission Lines
_ Sub transmission Lines
- Underground Transmission Lines

*Overhead Transmission Lines= An overhead power line is a structure used in electric power transmission and distribution to transmit electrical energy across large distances. It consists of one or more uninsulated electrical cables (commonly multiples of three for three-phase power) suspended by towers or poles.

*Sub transmission Lines= Sub transmission lines carry voltages reduced from the major transmission line system. Typically, 34.5 kv to 69 kv, this power is sent to regional distribution substations. Sometimes the sub transmission voltage is tapped along the way for use in industrial or large commercial operations.

*Underground Transmission Lines= In suburban areas, aesthetic issues, weather-related outages, some environmental concerns, and the high cost of some ROWs could make an underground option more attractive. Underground transmission construction is most often used in urban areas.

Nizamyuu

Isolators

2023-02-28 14:56:05 UTC

- Isolators are variations of circulators, but they have one input and one output.
- They are configured like a circulator, but only ports 1 and 2 are used.
- Isolators are often used in situations where a mismatch, or the lack of a proper load, could cause reflection so large as to damage the source.
- An isolator is a ferrite device that can be constructed so that it allows microwave energy to pass in one direction but blocks energy in the other direction.

Azib

Rectangular waveguide

2023-02-28 15:00:14 UTC

- Rectangular cross section.
- Material used are copper, aluminium and brass.
- Used widely as connectors between antenna and designated electronic equipments.
- Also used in the laboratory because they are light.
- Dominant mode is TE10

Azib

Transmitter

2023-03-03 03:58:26 UTC

produces a microwave signal that carries the information to be communicated.
generating microwave energy at the required frequency and power level, and modulating it with the input signal
Flashing a light to transmit a message in Morse Code is an example of modulation.

Overhead Transmission Lines

2023-03-03 04:02:59 UTC

they carry 3-phase current
The voltages vary according to the particular grid system they belong to.
Transmission voltages vary from 69 kv up to 765 kv.

Circular Waveguide

2023-03-03 11:44:20 UTC

- Circular cross section.
- Be able to guide wave in smaller area and path because it is easy to control.
- Easy to construct.
- Easy to connect the waveguide by using plumbing method.
- Dominant mode is TE11.

Camellia.

Attenuators

2023-03-03 12:23:07 UTC

- A device used to control the amount of microwave power transferred from one point to another on a microwave transmission system is called microwave attenuator.
- Microwave attenuators control the flow of microwave power either by reflecting it or absorbing it. Attenuators can be classified as fixed or variable type.

Camellia.

Double-ridged waveguide

2023-03-04 17:56:22 UTC

-A rectangular waveguide with a ridge from the top and bottom wall is called a Double Ridged Waveguide. Ridged Waveguides tend to have a lower impedance and wider bandwidth in their fundamental mode when compared to regular rectangular waveguides.
-Double ridge waveguides have a much smaller gap region between the e-field ground planes, making them much easier to bridge with smaller, more reliable, and faster actuators. In some cases even microelectromechanical (MEMS) switch technologies may be used to create relatively compact and fast waveguide switches.

Waveguide twists

2023-03-04 17:58:49 UTC

A gradual twist in the waveguide is used to turn the polarisation of the waveguide and hence the waveform. In order to prevent undue distortion on the waveform a 90° twist should be undertaken over a distance greater than two wavelengths of the frequency in use.

Rectangular waveguide

2023-03-05 05:17:26 UTC

A rectangular waveguide is a hollow metallic tube with a rectangular cross section. The conducting walls of the waveguide confine the electromagnetic fields and thereby guide the electromagnetic wave. The rectangular waveguide is basically characterized by its dimensions .for example,length a and breadth b.
-Mode TE 10

ain natasya

Directional couplers

2023-03-05 05:20:22 UTC

-passive device that divided and distributes power
-couples part of the transmission power by a known amount out through another port
-uses two transmission lines set close enough together such that energy passing through one is coupled to the other

Flexible waveguide

2023-03-05 05:23:42 UTC

-Brass or copper material.
-Small metal combine together.
-Flexible waveguide is often use to connect Antenna system especially when they may not to be fixed to the based transmitter receiver system.

Attenuator

2023-03-05 05:25:19 UTC

An attenuator is an electronic device that reduces the power of a signal without appreciably distorting its waveform. An attenuator is effectively the opposite of an amplifier, though the two work by different methods. While an amplifier provides gain, an attenuator provides loss, or gain less than 1.

Waveguide launcher

2023-03-05 05:30:13 UTC

The waveguide's launcher, a brief portion with magnetron attachment terminals, is used. This approach is most frequently employed in industrial devices and systems, where the working chamber is supplied directly with microwave radiation from the magnetron. The material is aluminium. Everything is laser welded, and after that, everything is glassed.

H-Band Waveguide

2023-03-05 05:37:15 UTC

H-Bend waveguides are manufactured from brass, copper, aluminum or coin silver. Waveguides have significant advantages over coaxial transmission in power handling, insertion loss and signal integrity

F2020

Wavemeter

2023-03-05 05:39:10 UTC

-Used to select or measure resonant cavity frequencies by having a plunger move in and out of the cavity thus causes cavity to resonate at different frequencies.

Frenquency Mixer

2023-03-05 06:07:17 UTC

In electronics, a mixer, or frequency mixer, is an electrical circuit that creates new frequencies from two signals applied to it. In its most common application, two signals are applied to a mixer, and it produces new signals at the sum and difference of the original frequencies. Other frequency components may also be produced in a practical frequency mixer.

coxial line

2023-03-05 06:09:59 UTC

Coaxial cable, or coax is a type of electrical cable consisting of an inner conductor surrounded by a concentric conducting shield, with the two separated by a dielectric; many coaxial cables also have a protective outer sheath or jacket.

slotted section

2023-03-05 06:15:52 UTC

The slotted line is one of the basic instruments used in radio frequency test and measurement at microwave frequencies. It consists of a precision transmission line, usually co-axial but waveguide implementations are also used, with a movable insulated probe inserted into a longitudinal slot cut into the line.

MICROSTRIP LINE

2023-03-05 06:18:38 UTC

A microstrip is a type of transmission line that consists of a conductor fabricated on dielectric substrate with a grounded plane. It is easily miniaturized and integrated with microwave devices making it a popular choice of transmission line.

ELLIPTICAL WAVEGUIDE

shvikajairaj — 2023-03-05 07:38:35 UTC

The purpose of the elliptical waveguides is quite straightforward; waveguides are used for the transmission of RF energy,and combine the advantages of different cable types, optimizing the electrical and mechanical performance at higher frequencies.

-SHVIKA-

Double Ridge Waveguide

2023-03-05 07:42:06 UTC

A rectangular waveguide with a ridge from the top and bottom wall is called a Double Ridged Waveguide. Ridged Waveguides tend to have a lower impedance and wider bandwidth in their fundamental mode when compared to regular rectangular waveguides

TUNER

shvikajairaj — 2023-03-05 07:43:49 UTC

Allows only the desired frequency to appear at the output. Any harmonic frequencies that appear at the output are reduced to an acceptable level.

-SHVIKA-

Cavity Duplexer

2023-03-05 07:46:41 UTC

A cavity duplexer is, basically, a set of very sharp notch filters. The stereotypical application for a cavity duplexer is as part of a repeater system. Repeaters tend to have a few characteristics which make cavity duplexers ideal: 1) Full-duplex operation. 2) No frequency changes.

Varacter Diode

2023-03-05 15:16:04 UTC

Varactor diode is mostly used in television and F.M receiver circuits. This diode can also be used in F.M transmitter circuits. The frequency range of varactor diode is up to 105 GHz. This type of diode changes its capacitance with the change of the bias appliede to it.

~Zharif

Rectangular Waveguide

2023-03-05 15:19:56 UTC

Metal pipe waveguides are often used to guide electromagnetic waves. The most common waveguides have rectangular cross-sections and so are well suited for the exploration of electrodynamic fields that depend on three dimensions.

~Zharif

CIRCULATORS (XY)

2023-03-06 02:53:43 UTC

As the larger “sibling” of the isolator, the circulator is a three-port device used to control the direction of signal flow (RF energy) in a circuit. Note that an isolator is a circulator with its third port terminated.The most common application is where a transmitter and receiver share an antenna, and the higher-power transit signal must not reach the sensitive receiver input as it would overload and possibly damage it. (The general term for this function is a duplexer.) Ideally, the transmit signal energy output would go only to the antenna port and not be “seen” by the receiver. (Note that there are other ways to implement the duplexer function, including using a more-expensive cavity duplexer.)

CIRCULAR WAVEGUIDE (XY)

2023-03-06 02:57:11 UTC

A waveguide with a circular cross-section is called as Circular Waveguide. It supports both transverse electric (TE) and transverse magnetic (TM) modes. TE11 is the dominant mode in a circular waveguide i.e., a signal in this mode propagates with the minimum degradation.

The circular waveguide is easier to manufacture than rectangular waveguides and is relatively easy to install. It is usually used to connect a horn antenna with a reflector in tracking radars and for long-distance waveguide transmission above 10 GHz.

2023-09-05 07:21:01 UTC

Ridge Waveguide

2023-09-05 07:22:19 UTC

COAXIAL LINE

2023-09-05 07:22:24 UTC

Flexible wave guide

2023-09-05 07:22:36 UTC

~Haziq afnan

2023-09-05 07:22:36 UTC

coaxial line

Coaxial Line F1074

2023-09-05 07:22:47 UTC

Microwave

2023-09-05 07:22:48 UTC

2023-09-05 07:22:51 UTC

COXIAL LINE F1010

2023-09-05 07:22:54 UTC

Flexible Waveguide

2023-09-05 07:22:56 UTC

Nabil Arami

2023-09-05 07:23:00 UTC

2023-09-05 07:23:06 UTC

2023-09-05 07:23:09 UTC

Ridge waveguide

2023-09-05 07:23:15 UTC

Coaxial line

2023-09-05 07:23:46 UTC

2023-09-05 07:23:56 UTC

Strip Line

2023-09-05 07:24:08 UTC

2023-09-05 07:24:09 UTC

2023-09-05 07:24:11 UTC

COAXIAL LINE

2023-09-05 07:24:28 UTC

2023-09-05 07:24:42 UTC

Microwave Devices

2023-09-05 07:24:59 UTC

Coaxial Line

2023-09-05 07:25:10 UTC

2023-09-05 07:26:39 UTC

FLEXIBLE WAVEGUIDE

2023-09-05 07:27:13 UTC

Coaxial Line

2023-09-05 07:28:22 UTC

2023-09-05 07:29:11 UTC

2023-09-05 07:29:28 UTC

2023-09-05 07:30:11 UTC

STRIP LINE

2023-09-05 07:37:32 UTC

2023-09-05 07:39:38 UTC

Microwave

2023-09-05 09:12:49 UTC

One microwave component is the magnetron.

The magnetron is a vacuum tube that generates and amplifies microwave signals. It consists of a heated cathode, an anode, and a series of resonant cavities.

The magnetron's design and construction ensure that the generated microwaves have a specific wavelength (around 12.2 centimeters) that is suitable for heating food.

The magnetron is a crucial component of a microwave oven as it converts electrical energy into microwave energy, which is then absorbed by water molecules in the food, causing them to vibrate and generate heat. This heat is what cooks or heats the food placed inside the microwave oven.

~ainkassim

MICROWAVE

2023-09-05 14:34:16 UTC

FLEXIBLE WAVEGUIDE
(DIA BOLEH DILENTURKAN)

ATTENUATORS

2023-09-05 14:43:53 UTC

Attenuators

09dep21f1062 — 2023-09-05 14:47:33 UTC

CIRCULATOR

2023-09-05 14:50:44 UTC

RIDGE WAVEGUIDE

2023-09-05 14:52:33 UTC

Waveguide Taper

2023-09-05 14:53:21 UTC

Rus Manul Hakim Bin Suaedi (09DEP21F1083)

Microwave Filter

2023-09-05 14:59:10 UTC

F1017

Tuner on microwave system (F1074)

2023-09-05 15:18:38 UTC

F1089

hsirabby — 2023-09-05 15:31:28 UTC

WAVEMETER

09dep21f1035 — 2023-09-05 15:35:43 UTC

F1044

2023-09-05 15:45:26 UTC

Microwave Coupler

2023-09-05 15:54:41 UTC

HARITH ASYRAAF (F1065)

Microwave device component

2023-09-05 16:02:02 UTC

Muhammad haziq bin suhaimi
09DEP21F1050

Isolator

2023-09-05 16:06:28 UTC

Muhammad haziq bin suhaimi
09DEP21F1050

Isolator

2023-09-05 16:09:18 UTC

Muhammad haziq bin suhaimi
09DEP21F1050

2023-09-05 16:37:46 UTC

Izwan rashid f1001

nurainzainal090103 — 2023-09-05 23:10:54 UTC

Nur Ain Binti Zainal

2023-09-06 00:04:45 UTC

Syafiqsha

2023-09-06 00:07:37 UTC

Haziq Afnan

Coupler

2023-09-06 00:33:28 UTC

2023-09-06 01:50:59 UTC

WAVEGUARD CORNER

2023-09-06 02:05:37 UTC

FIRDAUS AIMAN BIN MOHD FAUZI

2023-09-06 02:07:48 UTC

Terminator

2023-09-06 17:55:21 UTC

COUPLER

2023-09-08 20:11:01 UTC

2023-09-08 21:45:08 UTC

ATTENUATORS

Subject : MICROWAVE

coaxial line

2023-09-09 18:23:40 UTC

farah 09dep21f1042

CIRCULATOR

2023-09-10 11:10:53 UTC

RIDGE WAVEGUIDE

2023-09-10 11:12:45 UTC

Directional Coupler

2023-09-10 13:18:49 UTC

Yasmine F2010

Rectangular waveguide

2023-09-10 13:25:09 UTC

Yasmine F2010

Coupler

2023-09-10 13:42:38 UTC

Ridge waveguide

2023-09-10 13:44:04 UTC

2023-09-10 15:06:50 UTC

MUHD RAZIQWAN - 09DEP21F1015

2023-09-10 15:07:10 UTC

MUHD RAZIQWAN - 09DEP21F1015

2023-09-10 15:26:33 UTC

MUHAMMAD RAZIN UKAIL F1057

coaxial line

2023-09-10 16:40:41 UTC

nur arina 09dep21f1045

flexible waveguide

2023-09-10 17:01:01 UTC

2023-09-10 23:02:23 UTC

Aydin 09DEP21F1100

attenuators

2023-09-11 13:18:44 UTC

akmalhakim (f1003)

Coaxial cable

2023-09-11 13:52:29 UTC

MUHAMMAD HAZIQ 09DEP21F1094

Coaxial Cable

atiqahnajwa10 — 2023-09-11 14:33:32 UTC

Nurul Atiqah Najwa
09DEP21F1047

2023-09-11 17:31:19 UTC

sofea , 09dep21f1028

stripline

2024-02-12 07:23:12 UTC

https://drive.google.com/file/d/1ZkSFNzv-p_nPg2CulhOX8q3YxJ8ihoex/view?usp=drivesdk

RIDGE WAVEGUIDE

anashakim9264 — 2024-02-13 05:50:04 UTC

FLEXIBLE WAVEGUIDE

2024-02-14 04:39:59 UTC