TR201905736A1 - A POWER JOINER WITH A RADIAL WAVE GUIDED STRUCTURE - Google Patents

Abstract

The invention is a power combiner (1) that can operate in Ka-Band frequencies and it is characterized in that; It provides transmission with low loss by using waveguides (10) that provide a radial structure by bringing together on the same plane around the cavity (20) where coaxial transmission is provided and the said cavity (20).

Description

DESCRIPTION A POWER COMBINER WITH RADIAL WAVE GUIDED CONSTRUCTION Technical Area The invention is one of waveguides that can transmit high power with low loss at high frequencies. It's about a power combiner.

The invention especially; Operating in the 33-36 GHz band, axial power from waveguides by combining with a (radial) cavity in the structure to the connector, with the lowest loss and the greatest possible It is about a power combiner that transmits by combining in a small area.

State of the Art Wave guides in general; made of metal, low loss, corrosion resistant durable and made of brass, aluminum, magnesium and bronze and materials with a silver coating. They consist of conductive pipes and have high They can transmit high power with a low loss at frequencies.

Waveguides used in LNBs in dish antennas in the current technique are radar used in its facilities. A waveguide is rectangular, circular, or elliptical. may be cross-sectional, but in rectangular form most commonly used for relatively short connections is the one. Waveguides have great advantages over coaxial cables, but in practice it is used at frequencies above 1 GHz. with wave guides Electromagnetic power is much higher at microwave frequencies than other transmission lines. transmitted without loss. Electric and magnetic fields used to transmit energy is zero on the surfaces and these areas are in the volume between the wave guide walls. is imprisoned.

When the rectangular waveguide is energized, the wider edge in dominant mode An electric field (E-field) is formed in the middle. Where the electric field is strongest is the middle of the guide, and its strength gradually decreases towards its short edge. This reduction in cross section takes the form of a sinus. In this case, the electric field creates a magnetic field.

However, the magnetic field cannot stand vertically on a metal conductor. The propagation direction is only is the direction (rope) that the waveguide steers. The electric field (E-field) is larger than either between the edges, the magnetic field (H-field) occurs between both narrow edges.

When viewed in the time axis, the waves do not maintain their current state, on the contrary, the input They change their amplitude and polarity according to their sign. In the waveguide this electromagnetic waves propagate at a speed close to the speed of light. electromagnetic In waves, electric and magnetic fields always stand perpendicular to each other. If If the electric field is in the direction of propagation, it is called E-wave or TM-wave (Transverse Magnetic). is called. If the magnetic field is in the direction of propagation, it is called H-wave or TE-wave. (Transverse Electric). Rectangular waveguide is the easiest structure to create and only TE and TM spread. TEm mode has the smallest cutoff frequency and known as the dominant mode. This means that in TE10 mode the wave is still not weakened. can progress. Therefore, the TE10 mode is usually based on a rectangular waveguide. used in microwave system design.

In known applications, power combiners can operate in the low frequency band, Ka- In the band that corresponds to the 20-40 GHz frequency range of the electromagnetic spectrum, Waveguide input standards are suitable for the frequencies at which microwave radiation is made. is not. However, although the common connector structures are fixed, There are no mechanisms to make any fine adjustments. The application numbered "A power divider I combiner" has been found. In the summary section, “This invention is based on the power of the signals to be divided or combined. at least one first door, which enables the receiving or giving of at least one gradually widening symmetrically from the tip to the tip on the other side. first cut (taper cut), depending on the wide end of the first cut, its width (i.e. wavelength) gradually from the end where it is connected to the first part to the other side. at least one second cut, power split or combined in varying sinusoidal fashion comprising at least one second port allowing the reception or transmission of the desired signals, It relates to a power divider/combiner with an extended operating frequency range.” place expressions takes. The current document is not suitable for working in Ka-Band and in There is no mechanism for fine tuning.

As a result, due to the above-mentioned disadvantages and current solutions It is necessary to make an improvement in the relevant technical field due to the inadequacy of the is locked.

Purpose of the Invention The invention was created by being inspired by the current situations, and the above-mentioned negativities aims to solve.

The main purpose of the invention; A power with waveguides that can operate in the Ka-Band The other purpose of the invention; A radial force is generated by combining 14 wave guides. revealing the unifier.

Another purpose of the invention; A tool that allows fine-tuning is to reveal a power combiner that includes a mechanism.

Another purpose of the invention; Since there is no active or non-linear structure in It is to ensure that it can be used as a combiner or divider.

Another purpose of the invention; resulting in a dielectric-free product with high strength resistance. is to put.

In order to fulfill the above-described purposes, the invention operates at frequencies in the Ka-Band. It is a workable power combiner and its feature is; o cavity where coaxial transmission is provided, it is brought together on the same plane around the said cavity. waveguides that create a radial structure contains.

The structural and characteristic features and all advantages of the invention are given in the following figures and It is clearer thanks to the detailed explanation written by making references to these figures. will be understood as such, and therefore the assessment will also include these figures and should be taken into account.

Figures to Help Understand the Invention Figure 1 is a perspective view of the cavity portion of the inventive power combiner.

Figure 2 is a cross-sectional view of the inventive power combiner.

Figure 3 is a cross-sectional close-up of the common input of the inventive power combiner. is the view.

Figure 4 is a representative top view of the axial structure with the waveguides.

Description of Part References 1. Power combiner . waveguide . radial cavity 21. Cavity mode adjustment mechanism 22. Impedance matching mechanism . coaxial region 40. Connector Detailed Description of the Invention In this detailed description, the preferred power combiner (1) is the subject of the invention. their configuration is explained only for a better understanding of the subject.

The invention is a power combiner (1) that can operate at frequencies in the Ka-Band, and its feature is; The same plane around the cavity (20) where coaxial transmission is provided and the said cavity (20) By bringing together on the radial structure and low loss transmission It contains wave guides (10) that enable it to be made. However, the electric field and magnetic field directions are compatible with the basic modes in said cavity (20). said cavity (20) with the cavity mode adjustment mechanism (21) that ensures It includes an impedance matching mechanism (22) in the coaxial region (30).

The invention is also designed to enable said cavity (20) to form a radial structure. It has a tetradecagonal structure and the smoothness of the surface of the said power combiner (1) Preferably gold-plated to increase and reduce transmission loss is being configured.

The power combiner (1), which is shown in perspective in Figure 1, consists of 14 wave guides. (10) in the smallest possible structure, including mechanical interface details The cavity (20) is brought together on the same plane to form a tetradecagon. is combined with. Thus, a power combiner (1) in a radial structure is obtained.

The TE10 mode, which is the basic mode in wave guides, has electric field and magnetic field. Cavity mode adjustment It is provided by the mechanism (21). in the z-direction within the wave guide (10) the electric field forms the electric field inside the cavity (20). Waveguide (10) The y-direction magnetic field inside the cavity is in the (p (phi) direction. The electromagnetic wave coming over the guide (10) is also in the cavity (20). After it is formed, the cross section suitable for coaxial transmission with the structure in the middle part is converted to the mode of electromagnetic waves (TEM). Thus, in the cavity (20), 2- The electric field in the direction of p (rho) turns into an electric field in the coaxial.

However, the magnetic field in the tp (phi) direction is in the coaxial direction in the (p (phi) direction. turns into a magnetic field.

After transmission in the coaxial region (30), the impedance matching mechanism By making mode matching with (22), the coaxial transmission line will be 50 Ohm. it is connected to the 2.92 mm connector (40) by a layered matching circuit. Inventive power Since there is no active or non-linear structure in the combiner (1) structure It can be used as a combiner or divider. However, any dielectric Since it does not contain any power, its strength is at the highest possible level. The aforementioned combiner The power (1) is made of aluminum for lightweight product mechanics. In addition, the product The coating is gold-plated to increase surface smoothness and reduce transmission loss. covered with coating.

Claims (1)

REQUESTS It is a power combiner (1) that can operate at frequencies in the Ka-Band, and its feature is; o the cavity (20) where coaxial transmission is provided, o the said cavity (20) contains wave guides (10) that are brought together on the same plane to form a radial structure and to conduct low-loss transmission. It is a power combiner ('I) according to Claim 1, its feature is; it contains a cavity mode adjustment mechanism (21) that ensures that the directions of the electric field and magnetic field are compatible with the basic modes in the said cavity (20). It is a power combiner (1) according to claim 11, and its feature is; It contains an impedance matching mechanism (22) that enables fine adjustment in the coaxial region (30) within the said cavity (20). Claim 1! It is an e-connected power combiner (1), and its feature is; the said cavity (20) has a tetradecagonal structure to enable it to form a radial structure. It is a power combiner (1) according to claim 1, and its feature is; the surface of said power combiner (1) is preferably gold plated to increase smoothness and reduce transmission loss.