Civilization Template

Chapter 153 Chapter 143 Technology Diffusion

Tian Xu, a lecturer in the Department of Mechanical Engineering, pushed open the door of the department head's office: "Professor Zhou, are you looking for me?" As a result, he found that several young teachers had already arrived.

"Everyone is here, let's start." Professor Zhou stood up. "This convening of everyone is because our department has received a big cooperation project. If you have time, you can come to me to sign up."

"What project is it, and why do we need so many people?" Tian Xu asked.

That's the question everyone wants to ask.

The Department of Mechanics has a very special position in the University of Technology. Strong departments such as forging and welding are all separated from the Department of Mechanics.So there is a saying that there are many people in the mechanical department.

But because of this, the involution of the mechanical department is the most serious.So when hearing about a new project, the first thing everyone thinks of is not the project itself, but too many people involved.

"The project this time is not a single project, but a collection of a series of projects." Zhou Qiang took out a small and exquisite powder box sample from the drawer. "This is a sample sent by Songhuajiang Technology."

"Powder box?" Tian Xu was the closest, so he took the sample. "Do they want us to make cosmetics?"

But when I opened it, I found that it was not what everyone had guessed.The upper part of the powder box is a double-sided mirror with the same thickness as the shell, and a bunch of digital buttons appear in the lower part where the powder should be placed.

"These are samples of several mobile phones provided by Songhuajiang Technology."

Zhou Qiang took out another phone sample from the drawer, with buttons arranged vertically on the left and right sides of the display.

"Is this a mobile phone?"

Tian Xu, who was holding the sample and was about to pass it down, almost threw the sample on the ground.

Due to Hong Kong and Taiwan movies, the image of "Big Brother" has long been deeply rooted in the hearts of the people.Whether it is a gang boss or a real estate tycoon, the unified symbol of a rich person is to carry a mobile phone the size of a brick.

But the two samples Professor Zhou took out were less than half the size of an adult male palm.The teacher next to Tian Xu snatched the sample and kept looking at it.

"Correct."

"I'm afraid this product is not as big as a BP machine. Is this possible?"

A group of young teachers expressed disbelief while passing the samples.

Due to the high price of mobile phone, it is rare to see in daily life. Relatively speaking, the BP machine is much more "approachable".Two 3000 yuan Chinese machines and one thousand yuan digital machines have appeared in the streets and alleys of Bingcheng.

The two samples are larger than digital pagers, but obviously smaller than Chinese pagers.

"With the current technology, of course it is impossible. That's why Songhuajiang Technology came to us and hoped that we could help."

Zhou Qiang took out a list. "The names of nearly ten projects are listed here. Please pass them on to each other. This opportunity is very rare. Once successful, you will gain both fame and fortune."

Tian Xu reached out and took the list. "Professor Zhou, you have been talking about Songhuajiang Technology. Which company is Songhuajiang Technology? Why haven't you heard of it before?"

"That's right. Did Songhuajiang Semiconductor change its name?" Other teachers felt the same way. "If it's really Songhuajiang Semiconductor's project, then there's no need to worry about the project's funding. They have recently received a large investment, and they are always rich."

"This Songhuajiang Technology is not the same as Songhuajiang Semiconductor, but there is a relationship between them."

Zhou Qiang roughly described the source of the project.

Songhuajiang Technology was originally a purse company established by the Chen and Qu families in order to retain the small treasury.

After discussing with Qu Yanqiu, Chen Quan and Qu Yanqiu decided to put some of the technologies and products seen in West Germany under the name of Songhuajiang Technology, and then use this company to carry out technical cooperation with Songhuajiang Semiconductor.

The first partner of the two companies is MEMS Mike.

From Chen Quan's memory, all mobile phones in the future will use MEMS microphones.For this alone, its market size has reached a hundred times that of automotive sensors.

Through a series of arrangements, Songhuajiang Technology continued to make heavy bets on future technology after replacing part of the start-up capital. This project outsourcing is one of them.

"It's okay. No matter who invests, as long as they have money." Tian Xu glanced at his mouth.

"The investment in this batch of projects is distributed in installments, and is currently in the feasibility analysis stage. After everyone has selected a topic, go back and do a simple research and analysis, and then return the analysis results.

If the other party approves, the project continues to go down.If the other party does not approve of your ideas, the project will naturally terminate. "

After Professor Zhou reiterated the needs of Party A, everyone began to share the spoils.

In order to make a big phone the size of a brick and slim down to half the size of a palm, too many places need to be redesigned and adjusted.

The simplest ones have various external interfaces, such as audio jacks, charging cable connectors, etc.

The second is the size of the accessories. For example, the thickness of the display screen needs to be thinned, or it should be designed to be integrated with the shell of the mobile phone, so that a layer of protective glass can be saved.Ideas like these, everyone brainstormed and found a lot.

Having a sample in hand is equivalent to writing a propositional composition. In short, it is right to rely on the answer.

Tian Xu picked for a long time, and finally picked a micro-travel keyboard.

Traditional mobile phones use metal contact buttons, not to mention the large travel, and additional rubber protection is needed on the outside.Its finished thickness is close to 10 mm.In the two samples, especially the powder compact, the total thickness of the keyboard, including key travel, cannot exceed 3mm.

Tian Xu plans to use a conductive rubber to directly integrate the relevant circuits and elastic reset functions on the rubber.

Repeatedly playing with the powder box mobile phone sample, Tian Xu suddenly realized a problem. "Is there something wrong with these two mobile phones?"

"What's wrong?"

"If they're mobile phones, where are the antennas?"
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Department of Electronics,
"The mobile phone has a built-in antenna? What does the built-in antenna mean? Is the antenna hidden inside the mobile phone and pulled out when in use?" Professor Lin asked several documents.

These documents were brought over by his graduate student Wang Junxiong.Wang Junxiong wants to take the built-in antenna as his research topic.

Even looking at the document, Professor Lin did not understand what Wang Junxiong wanted to do.

The scene of a group of people holding mobile phones and looking for signals everywhere has become a common stalk in film and television dramas.In addition to talking by roaring, the antenna that can be stretched out has also become an important symbol of Big Brother.

This stretchable antenna is, in technical terms, a monopole antenna.Adjusting its length can not only increase the receiving area, but also adjust the corresponding resonant frequency, so as to achieve the best receiving and sending effects.

Since the external antenna is arranged outside the casing of the mobile phone, it is less restricted by the casing and less affected by the electronic devices inside the mobile phone, so it can obtain excellent wireless communication performance.

It is true that some manufacturers hide the external antenna in the housing itself for the sake of styling, but this tricky behavior can still only be regarded as a type of external antenna.

"Is this kind of topic worth designing? We are engaged in communication, not in industrial shape design."

Professor Lin dismissed Wang Junxiong's new ideas.

"No, no, the built-in antenna I'm talking about is really built-in." Wang Junxiong waved his hands again and again. "Not one of those retractable antennas that can be pulled out."

"How is this possible?" Professor Lin laughed. "The antenna is built in, how do you solve the interference of the internal components of the mobile phone? The size of the human hand, the position of the grip, the position of the human ear, and the size of the face will all affect the communication results. Are you joking? Who gave you the This bad idea?"

""Songhua River Science and Technology""

"Who?"

""Songhuajiang Technology" is a joint venture subsidiary company of Songhuajiang Semiconductor."

Wang Junxiong has been pursuing Luo Ningwei, the campus belle of the University of Technology.After several contacts, the relationship between the two did not make much progress, but they got a new project by accident.

"Songhuajiang Semiconductor?"

Professor Lin hesitated.

Songhuajiang Semiconductor can be regarded as one of the few big dogs that the University of Technology can meet.Rich, stylish, and very accurate.Those who cooperate with Songhuajiang Semiconductor have all posted.

"Why did they think of making antennas? Aren't they engaged in semiconductor technology? Besides, this built-in antenna, how can it be so easy to make?"

"By the way, Luo Ningwei also gave me a schematic diagram."

Wang Junxiong took out another sketch from the folder beside him. "She told me that the antenna should be designed according to this structure. They have already given the name of the antenna, Planar Inverted-F Antenna (PIFA, Planar Inverted-F Antenna)"

"Oh? And a schematic diagram?"

Professor Lin took the sketch handed over by Wang Junxiong. "This... this is completely a three-dimensional surface!"

In the sketch, a thin copper sheet shrinks inward in the spatial structure, giving the impression that it is attached to the outer surface of the bread.In addition to the three-dimensional structure, the copper sheet is not continuous, and several long slots are cut in the middle as intervals.

"The structure of this antenna is completely three-dimensional. Who came up with this idea? How do you calculate it? If you can calculate it, how do you draw a picture to express it?"

(End of this chapter)