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The Principle of Radio Wave Transmission

2026-11-01 14:01
2026-11-01 15:02

Radio wave transmission was a process from the transmitting point to the receiving point. During the transmission process, continuous refraction and reflection would occur in the medium or the medium interface. When transmitting in various media and their boundaries, the direction of transmission will change due to reflection, refraction, scattering, and refraction. At the same time, it will be affected by the absorption of the medium, and the field strength will continue to weaken. Radio waves could be called electromagnetic waves. The electromagnetic field was generated by the signal sent by the transmitter through the antenna. The characteristics of the electromagnetic field depended on the distance from the antenna and were usually divided into near-field and far-field. There were many ways to define the boundary and starting position of the near and far fields. For example, the far field started at a distance of 2 Lambda (Lambda is the wave-length), and there were many other explanations that were beyond 3 Lambda and 10 Lambda. The far field was a real radio wave that spread at close to the speed of light (300 million meters per second) in the atmosphere. The electric field and magnetic field supported each other and generated each other. The signal strength was inverse proportional to the square of the distance. In addition, when radio waves were transmitted in different media (such as air, liquid, solid, etc.), they would show reflection, refraction, scattering, and other characteristics. While waiting for the TV series, he could also read the exciting content related to this site!

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The difference between the sunshine rose and the clear king

There were the following differences between Sunshine Rose and Clear King: 1. ** Colors **: Sunlight Rose was yellowish-green, Clear King was bright dark green. 2. ** Taste difference **: The Sunshine Rose is crispy and sweet with a faint rose fragrance, while the Clear King is fresh and sweet with juicy and tender flesh. 3. ** Planting Difficulty and Price **: The Sunshine Rose is relatively easy to grow, and the price is relatively affordable. The Clear King is more difficult to grow, and it requires strict quality control and a specific planting environment, so the price is relatively higher. 4. ** Different origins **: Sunshine roses are produced in China and are planted in many places in China such as Henan, Sichuan, Shaanxi, Anhui, Jiangsu, Zhejiang, Yunnan, etc. The Haruka grapes are produced in Okayama Prefecture, Japan, and have applied for a geographical indication trademark. Only those produced in this area can be called Haruka grapes. Japanese Haruka grapes are difficult to buy in the domestic market. 5. ** Fruit characteristics **: Sunny rose has seeds, the fruit is tightly packed, the fruit surface is shiny, the fruit powder is little, the flesh is fresh and juicy; Clear King grape has no seeds, the skin is thin and the flesh is thick, the taste is firm. The original work was equally exciting. You could click on the original work of " The Story of Rose " to understand the plot in advance!

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2026-11-01 14:07

Why did the Qing Emperor kill Censor Lai?

Censor Lai found many cases of corruption among the officials, from the relatives of the Emperor and the Second Prince to the Director of the Inspection Council, Chen Pingping. In the end, he even reported the crime of the Qing Emperor's lax discipline. He wanted to hand over the evidence he had found to Fan Xian, but this went against the Qing Emperor's idea of Fan Xian being a lone subject. It touched the Qing Emperor's reverse scale, so the Qing Emperor flew into a rage and beat him to death. The most important thing in the Qing Emperor's heart was always himself. In his view, anyone who violated his interests could be killed. Censor Lai remonstrated with the determination to die and was eventually executed by the Qing Emperor.

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2026-11-01 14:06

The lyrics of the little black cat

Lyric: I'm a happy, clingy little black cat. I like to act coquettishly all day long. I also like to fool around. I secretly follow behind you and circle around your feet. When I'm hungry, I'll meow meow <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>

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2026-11-01 14:06

What stocks did Ping China invest in?

China An invested in stocks with low valuations and high dividends, as well as industry leaders and profitable stocks, such as Yunnan Baiyao, Beijing-Shanghai high-speed rail and other high-quality assets. Watching " Safe Entry " wasn't enough. Everyone, please click to read the novel!

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2026-11-01 14:06

Who are the three kings of the other world?

According to some readers, the three kings of the foreign world might be Bone King, Slime, and Spider. However, some readers believed that there should be four kings of the foreign world. In addition to the above three, there were also goblins, but goblins did not make an animation. The novel " Yan Xiaoqi's Journey to the Other World " is equally exciting. Everyone is welcome to click and read it!

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2026-11-01 14:05

A sentence sent after kindergarten graduation

Here are some sentences suitable for kindergarten graduates: ** I. Sentences that express encouragement and expectations for children ** 1. The graduation of kindergarten is a new starting point for growth. May you be like a brave little sailboat, braving the wind and waves in the ocean of knowledge and sailing towards a future full of hope. 2. Baby, the kindergarten time has come to an end, and you are about to start a new journey. I hope you are like a vibrant seed, growing up in the fertile soil of primary school and gaining unlimited possibilities. 3. My little darling who has just graduated, may you enter elementary school with curiosity and a heart of exploration, like a sunflower chasing the sun, always positive and absorbing the nutrients of knowledge. ** 2. Sentences expressing reluctance and memories ** 1. Now that you have graduated from kindergarten, your purest laughter and innocent tears will remain here. The days you spent with your friends will become the most precious memories. 2. Watching you graduate from kindergarten, my heart is full of reluctance. I still remember how you looked when you first entered the kindergarten. Now you have grown into a brave young man. I hope you will always treasure this beautiful time. ** 3. A sentence that wishes the child well for his future development ** 1. My dear child, as you graduate from kindergarten, I hope your future will be filled with brilliant colors, as beautiful as a rainbow, and that both your studies and your life will be smooth. 2. I hope that in your future learning career, you will be as passionate as when you were in kindergarten. You will continue to explore your potential and become an outstanding person. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>

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2026-11-01 14:04

Will I be allergic to fake Ocean Blue Mystery Water?

From the reference cases, some consumers reported that they had allergic reactions after using the fake products of the Mystery of the Sea Blue, such as red rashes, peeling skin, redness, itching, etc., but based on these cases alone, it could not be determined that the fake products of the Mystery of the Sea Blue would definitely cause an allergic reaction, because there were differences in the sensitivity of individual skin. However, the fake products did have the risk of triggering allergic reactions due to uncontrollable factors such as ingredients. The novel " Gilded Palm " is equally exciting. Everyone is welcome to click and read it!

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2026-11-01 14:04

Which is the best university in Malaysia?

From the perspective of geographical convenience, the University of Malaysia was in a good location. The University of Malaysia was located in the capital of Malaysia, Malaysia. It was a 40-minute drive from the international airport. It was easily accessible and had a convenient road network. It was surrounded by commercial centers and service facilities. Moreover, it was very close to the Twin Towers, the Independent Square, and the large shopping center, Valley City. Living here not only allowed one to experience a strong learning atmosphere, but also the rich and convenient urban life. As the capital of Malaysia, it was the largest, most populated, and densest city. It was an international city that had a great influence on Southeast Asia's culture, education, sports, economy, commerce, and finance. However, the "best" location of a university may vary according to individual needs and preferences. For example, some students may prefer a university in Selangor. Selangor has many universities and is the state with the most universities in Malaysia. It also has its own geographical advantages and conveniences. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>

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2026-11-01 14:04

Reading Online

There were a few novels related to Suisui that could be read online, such as Chen Suisui's Qi Banquet, which could be read at 5739 yuan on the official account of Yuzi Wenyuan; Lin Suisui Gu Junze, which could be read at 6309 yuan on the official account of Xiuya Shuge; The vegetative man's husband was switched, and I became a big boss's palm (protagonist Ning Suisui), etc., but there was no mention of the specific official online reading platform and other information. "Qiao Yun" is also a wonderful novel. Everyone is welcome to click and read it!

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2026-11-01 14:04

A happy family in kindergarten, a tutorial on drawing works

The following is a tutorial on drawing a happy family of three: 1. First, he drew his father's face and hair on it. The hair had to be hard and solid. Then, he drew his eyes, eyebrows, lips, and ears on the face to complete the drawing of his father's image. 2. Draw the baby's head, using a circle that is slightly smaller than the father's head. Then, draw the hair, eyes, lips, and ears on it. Draw three strands of hair on the head to represent the baby. 3. Draw the mother's face. First, draw the bangs. Then, draw the face down and draw the eyes and lips on the face. Finally, draw the mother's high ponytail on top of the parents 'heads. 4. Finally, color the family of three. The baby's face was painted pink, the parents 'faces were painted skin color, the father's hair was painted coffee color, and the mother's hair was painted black. You could also apply eye shadow for the family. If it was a simple drawing of a happy family of four (using a family of four sitting on the sofa watching TV as an example), the drawing tutorial would be as follows: 1. Draw the mother and son on the paper. The position is on the right. Because they are sitting on the sofa, pay attention to the height of their sitting on the same level. The height ratio of the mother and son can be drawn as needed. 2. Draw the daughter on the right side of the son, maintaining the same sitting height. Pay attention to the clear lines of the girl. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>

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2026-11-01 14:03
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