Selection method and application of Murata RF devices in ADS

btty038

Selection method and application of Murata RF devices in ADS [Copy link]

 

This article introduces the characteristics and uses of RF inductors. High-frequency inductors When it comes to high-frequency circuit inductors, as the name suggests, they are inductors used in high-frequency bands ranging from tens of MHz to tens of GHz. Because the Q value (Quality factor) requirements are high, they are generally hollow-core structures and are mainly used in mobile communications such as mobile phones and wireless LANs...

This article introduces RF inductor characteristics and their uses. High frequency inductors Speaking of inductors for high-frequency circuits, as the name suggests, they are inductors used in high-frequency bands ranging from tens of MHz to tens of GHz. Because the Q value (Quality factor) requirements are high, they are generally hollow-core structures and are mainly used in high-frequency circuits in mobile communication devices such as mobile phones and wireless LANs. Murata's inductors for high-frequency circuits come in three types: wire wound, multilayer, and film. Below, we will briefly introduce their features and related applications. Product Features and Selection Methods 1. Three major construction technologies 2. High Q value winding inductor technology 0804 size realization The general technology of high-frequency winding products is combined with high-precision winding technology and small core molding technology to achieve miniaturization. 3. Thin-film inductor technology High-precision stacking Relying on high lamination accuracy and enlarging the inner diameter, the magnetic flux can pass easily and achieve high Q value characteristics! Differences in properties of various structures 1. Characteristics of winding structure The so-called winding structure is to wind the copper wire into a spiral shape on the alumina core. Compared with the multilayer and thin film methods, the winding structure can use thick wire to wind the coil and has the following characteristics. · Able to achieve low DC impedance · Q (Quality factor) is very high · Can handle large current This feature can be used for coupling and IF loop resonance in antennas and PA circuits that require a high Q value. Murata's corresponding products LQW04AN_00/LQW15AN_00/LQW15AN_10/ LQW15AN_80/LQW18AN_00/LQW18AN_10 Series 2. Characteristics of film structure The thin film structure also adopts a multilayer structure, and Murata's original micro-processing technology is used to produce the coil, which is a chip inductor that realizes high-precision ceramic materials. The coil is manufactured with very high precision and has the following characteristics. Even small 0603 chip inductors can achieve high-performance electrical characteristics A product lineup that realizes fine sensing value steps and high precision High Q, high SRF Therefore, this inductor meets the trend of miniaturization and lightness in mobile communication devices and is suitable for coupling and resonance of RF circuits that require small deviation and high Q value. Murata's corresponding products LQP03TN_02/LQP02TN_02 Series 3. Characteristics of the laminated structure The so-called multilayer structure is a monolithic structure in which ceramic materials and coil conductors are laminated together. Compared with the winding structure, it can achieve miniaturization and cost reduction. Although the Q value is lower than that of the winding structure, the overall balance of L value deviation, rated current, size, price, etc. is better and its application is more extensive. Suitable for various applications such as coupling, choke, and resonance in RF circuits of mobile communication equipment. Murata's corresponding products LQG15HN_02/LQG15HS_02/LQG18HN_00 Series 4. Due to the different structures, the characteristics are different Q Value The figure shows the frequency characteristics of the Q value of various structures (winding type, multilayer type) of high-frequency coils and 1005 size. As shown in Figure 1, the characteristic of the winding type is that the Q value is much higher than the multilayer type. The film type has the characteristics of small 0603 and 0402 size products, and the Q value is higher than the lamination method used by other companies in the same industry. (Figure 2) Inductance step and deviation The deviation and L value of high-frequency coils and laminated products and thin-film products are shown in the table below. Compared with laminated products, thin-film products have higher position accuracy when forming coils, more stable L values, higher accuracy, and smaller step differences. 5. Conclusion How to Use Inductors Effectively High-frequency coils are mainly used in high-frequency circuits such as mobile phones and wireless LANs. The following will introduce the main uses of high-frequency coils of various structures. 1. Wire winding type The winding type LQW series features a high Q value. Since the higher the Q value, the better the attenuation characteristics of the filter passband, it can be used in the matching circuit of the RF part. In addition, since it can ensure the sensitivity of the antenna's transmission and reception signals, it is also often used in the matching circuit of the antenna. Secondly, due to its low Rdc characteristics, it is also suitable for choke circuits where large currents flow. 2. Thin film type The film type LQP series features that it uses the photosensitive method to form electrodes, which enables fine processing of the coil model, and has high Q value characteristics while achieving miniaturization, and the deviation of the L value is small, which can achieve a small L value distribution response. At present, in order to comply with the trend of miniaturization, the mainstream 0603 size and the industry's smallest 0402 size products are being mass-produced. It can be used in RF matching circuits and resonant circuits that require miniaturization, small deviations, and small L value distribution responses. In addition, it can also be used in choke circuits that focus on miniaturization and low Rdc. 3. Laminated type Although there are three types of multilayer structures and the Q value is relatively low, it is widely used in RF matching circuits, resonant circuits, and choke circuits because of its good overall balance in L value deviation, specifications, and price. ADS Device Panel 1 Device Panel 2 plugin Loading device library Actual replacement of ideal original parts Simulation

btty038

I have used power inductors from Japan and they are really good. Although I hate Japan in my heart, they have done a good job in industrial technology. I have to admit that so I shared this article. The following is the Murata component library I made using the industrial software ADS. The actual application of simulation in it will be introduced in detail later.

以有涯随无涯

Hello, I need help, I still don't understand how to use Murata components for direct simulation

btty038

Yi You Ya Sui Wu Ya published on 2022-12-27 10:43 Hello, I need help, I still don’t understand how to use Murata’s components for direct simulation

You need to place the plugin you have in Murata's library?

btty038

Yi You Ya Sui Wu Ya published on 2022-12-27 10:43 Hello, I need help, I still don’t understand how to use Murata’s components for direct simulation

Please share your files and operation steps so that I can see if there is anything wrong.

HandHans

btty038 posted on 2022-12-27 19:49 Please share your files and operation steps so that I can see if there is anything wrong

I have a question, after I imported the Murata device, I got an error message during simulation: "Error detected by hpeesofsim during netlist parsing. Unable to access library: muRataLibWeb". Is there any solution?

btty038

HandHans posted on 2023-1-4 12:33

btty038

btty038 posted on 2023-1-5 21:25

btty038

HandHans posted on 2023-1-4 12:33

btty038

Please check what you have neglected. There is no problem if you follow these steps.

btty038

HandHans posted on 2023-1-4 12:33

This is the one without the plugin added....

HandHans

btty038 posted on 2023-1-5 22:13 This one does not have any plugins added....

Thanks sir

RF_ST

HandHans posted on 2023-1-9 18:15 Thanks, big guy

Hi, may I ask how you solved your problem? I have the same problem and I am looking for help!

3358762

HandHans posted on 2023-1-9 18:15 Thanks, big guy

How to solve this problem?

sereinm

3358762 posted on 2023-2-28 17:14 I also want to ask how to solve this problem

Same question, has it been resolved?